TR4 postcode district: Threemilestone and around, Cornwall

TR4 is a postcode district in England, with 524 postcodes in use in 2 sectors. It has postcodes in Threemilestone and Truro. Its council is Cornwall.

Postcodes in use
524
Sectors
2
Council
Cornwall
Places
2 places

Source: Office for National Statistics (ONS) Postcode Directory, August 2026, loaded 20 October 2026. See all our data sources

Every postcode in TR4, by flood risk

Map of every postcode in TR4, by flood risk Of the 524 postcodes in TR4 that ONS places, 32 have a home or business at high risk, 6 are at medium risk at worst, 10 are at low risk at worst and 476 are not on the Environment Agency's at-risk list. 2 groups of postcodes at high or medium risk are outlined: 9 postcodes at high or medium risk; 5 postcodes at high or medium risk. Places named: Threemilestone, Truro, Redruth, St Agnes, Perranporth, Lanner. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 2.5 km. A39A3047 TR4 8AE: not on the flood risk listTR4 8AG: not on the flood risk listTR4 8AH: not on the flood risk listTR4 8AJ: not on the flood risk listTR4 8AL: not on the flood risk listTR4 8AP: not on the flood risk listTR4 8AS: not on the flood risk listTR4 8AT: not on the flood risk listTR4 8AU: not on the flood risk listTR4 8AW: not on the flood risk listTR4 8AX: not on the flood risk listTR4 8AY: not on the flood risk listTR4 8BA: not on the flood risk listTR4 8BB: not on the flood risk listTR4 8BD: not on the flood risk listTR4 8BE: not on the flood risk listTR4 8BJ: not on the flood risk listTR4 8BL: not on the flood risk listTR4 8BN: not on the flood risk listTR4 8BP: not on the flood risk listTR4 8BQ: not on the flood risk listTR4 8BS: not on the flood risk listTR4 8BT: not on the flood risk listTR4 8BU: not on the flood risk listTR4 8BW: not on the flood risk listTR4 8BX: not on the flood risk listTR4 8BY: not on the flood risk listTR4 8BZ: not on the flood risk listTR4 8DA: not on the flood risk listTR4 8DB: not on the flood risk listTR4 8DD: not on the flood risk listTR4 8DE: not on the flood risk listTR4 8DF: not on the flood risk listTR4 8DG: not on the flood risk listTR4 8DJ: not on the flood risk listTR4 8DN: not on the flood risk listTR4 8DP: not on the flood risk listTR4 8DQ: not on the flood risk listTR4 8DR: not on the flood risk listTR4 8DS: not on the flood risk listTR4 8DU: not on the flood risk listTR4 8DW: not on the flood risk listTR4 8DY: not on the flood risk listTR4 8DZ: not on the flood risk listTR4 8EE: not on the flood risk listTR4 8EG: not on the flood risk listTR4 8EH: not on the flood risk listTR4 8EJ: not on the flood risk listTR4 8EL: not on the flood risk listTR4 8EN: not on the flood risk listTR4 8EQ: not on the flood risk listTR4 8ES: not on the flood risk listTR4 8ET: not on the flood risk listTR4 8EU: not on the flood risk listTR4 8EW: not on the flood risk listTR4 8EX: not on the flood risk listTR4 8EY: not on the flood risk listTR4 8EZ: not on the flood risk listTR4 8FB: not on the flood risk listTR4 8FD: not on the flood risk listTR4 8FE: not on the flood risk listTR4 8FG: not on the flood risk listTR4 8FL: not on the flood risk listTR4 8FN: not on the flood risk listTR4 8FP: not on the flood risk listTR4 8FR: not on the flood risk listTR4 8FX: not on the flood risk listTR4 8FY: not on the flood risk listTR4 8FZ: not on the flood risk listTR4 8GA: not on the flood risk listTR4 8GB: not on the flood risk listTR4 8GD: not on the flood risk listTR4 8GE: not on the flood risk listTR4 8GF: not on the flood risk listTR4 8GG: not on the flood risk listTR4 8GH: not on the flood risk listTR4 8GJ: not on the flood risk listTR4 8GN: not on the flood risk listTR4 8GP: not on the flood risk listTR4 8GQ: not on the flood risk listTR4 8GX: not on the flood risk listTR4 8HA: not on the flood risk listTR4 8HB: not on the flood risk listTR4 8HE: not on the flood risk listTR4 8HF: not on the flood risk listTR4 8HH: not on the flood risk listTR4 8HJ: not on the flood risk listTR4 8HL: not on the flood risk listTR4 8HN: not on the flood risk listTR4 8HP: not on the flood risk listTR4 8HQ: not on the flood risk listTR4 8HR: not on the flood risk listTR4 8HS: not on the flood risk listTR4 8HT: not on the flood risk listTR4 8HU: not on the flood risk listTR4 8HW: not on the flood risk listTR4 8HY: not on the flood risk listTR4 8HZ: not on the flood risk listTR4 8JA: not on the flood risk listTR4 8JB: not on the flood risk listTR4 8JD: not on the flood risk listTR4 8JE: not on the flood risk listTR4 8JF: not on the flood risk listTR4 8JG: not on the flood risk listTR4 8JH: not on the flood risk listTR4 8JJ: not on the flood risk listTR4 8JL: not on the flood risk listTR4 8JQ: not on the flood risk listTR4 8JR: not on the flood risk listTR4 8JS: not on the flood risk listTR4 8JU: not on the flood risk listTR4 8JY: not on the flood risk listTR4 8JZ: not on the flood risk listTR4 8LA: not on the flood risk listTR4 8LD: not on the flood risk listTR4 8LF: not on the flood risk listTR4 8LG: not on the flood risk listTR4 8LH: not on the flood risk listTR4 8LL: not on the flood risk listTR4 8LN: not on the flood risk listTR4 8LQ: not on the flood risk listTR4 8LR: not on the flood risk listTR4 8LT: not on the flood risk listTR4 8LU: not on the flood risk listTR4 8LX: not on the flood risk listTR4 8LY: not on the flood risk listTR4 8LZ: not on the flood risk listTR4 8NA: not on the flood risk listTR4 8NB: not on the flood risk listTR4 8ND: not on the flood risk listTR4 8NE: not on the flood risk listTR4 8NF: not on the flood risk listTR4 8NG: not on the flood risk listTR4 8NP: not on the flood risk listTR4 8NR: not on the flood risk listTR4 8NS: not on the flood risk listTR4 8NT: not on the flood risk listTR4 8NU: not on the flood risk listTR4 8NW: not on the flood risk listTR4 8NY: not on the flood risk listTR4 8NZ: not on the flood risk listTR4 8PA: not on the flood risk listTR4 8PB: not on the flood risk listTR4 8PE: not on the flood risk listTR4 8PF: not on the flood risk listTR4 8PG: not on the flood risk listTR4 8PH: not on the flood risk listTR4 8PJ: not on the flood risk listTR4 8PL: not on the flood risk listTR4 8PN: not on the flood risk listTR4 8PQ: not on the flood risk listTR4 8PW: not on the flood risk listTR4 8PZ: not on the flood risk listTR4 8QB: not on the flood risk listTR4 8QD: not on the flood risk listTR4 8QE: not on the flood risk listTR4 8QF: not on the flood risk listTR4 8QG: not on the flood risk listTR4 8QH: not on the flood risk listTR4 8QJ: not on the flood risk listTR4 8QL: not on the flood risk listTR4 8QN: not on the flood risk listTR4 8QP: not on the flood risk listTR4 8QQ: not on the flood risk listTR4 8QR: not on the flood risk listTR4 8QS: not on the flood risk listTR4 8QW: not on the flood risk listTR4 8QX: not on the flood risk listTR4 8QY: not on the flood risk listTR4 8RD: not on the flood risk listTR4 8RE: not on the flood risk listTR4 8RF: not on the flood risk listTR4 8RH: not on the flood risk listTR4 8RJ: not on the flood risk listTR4 8RP: not on the flood risk listTR4 8RQ: not on the flood risk listTR4 8RS: not on the flood risk listTR4 8RT: not on the flood risk listTR4 8RU: not on the flood risk listTR4 8RX: not on the flood risk listTR4 8RY: not on the flood risk listTR4 8RZ: not on the flood risk listTR4 8SA: not on the flood risk listTR4 8SD: not on the flood risk listTR4 8SE: not on the flood risk listTR4 8SG: not on the flood risk listTR4 8SL: not on the flood risk listTR4 8SP: not on the flood risk listTR4 8SQ: not on the flood risk listTR4 8SR: not on the flood risk listTR4 8SS: not on the flood risk listTR4 8SU: not on the flood risk listTR4 8SW: not on the flood risk listTR4 8SZ: not on the flood risk listTR4 8TA: not on the flood risk listTR4 8TB: not on the flood risk listTR4 8TD: not on the flood risk listTR4 8TE: not on the flood risk listTR4 8TF: not on the flood risk listTR4 8TG: not on the flood risk listTR4 8TH: not on the flood risk listTR4 8TN: not on the flood risk listTR4 8TR: not on the flood risk listTR4 8TS: not on the flood risk listTR4 8TU: not on the flood risk listTR4 8TY: not on the flood risk listTR4 8UA: not on the flood risk listTR4 8UD: not on the flood risk listTR4 8UJ: not on the flood risk listTR4 8UN: not on the flood risk listTR4 9AA: not on the flood risk listTR4 9AD: not on the flood risk listTR4 9AE: not on the flood risk listTR4 9AF: not on the flood risk listTR4 9AG: not on the flood risk listTR4 9AH: not on the flood risk listTR4 9AL: not on the flood risk listTR4 9AN: not on the flood risk listTR4 9AP: not on the flood risk listTR4 9AR: not on the flood risk listTR4 9AS: not on the flood risk listTR4 9AT: not on the flood risk listTR4 9AU: not on the flood risk listTR4 9AX: not on the flood risk listTR4 9AY: not on the flood risk listTR4 9AZ: not on the flood risk listTR4 9BB: not on the flood risk listTR4 9BD: not on the flood risk listTR4 9BE: not on the flood risk listTR4 9BG: not on the flood risk listTR4 9BJ: not on the flood risk listTR4 9BL: not on the flood risk listTR4 9BN: not on the flood risk listTR4 9BP: not on the flood risk listTR4 9BY: not on the flood risk listTR4 9BZ: not on the flood risk listTR4 9DA: not on the flood risk listTR4 9DB: not on the flood risk listTR4 9DE: not on the flood risk listTR4 9DF: not on the flood risk listTR4 9DG: not on the flood risk listTR4 9DH: not on the flood risk listTR4 9DJ: not on the flood risk listTR4 9DL: not on the flood risk listTR4 9DN: not on the flood risk listTR4 9DP: not on the flood risk listTR4 9DQ: not on the flood risk listTR4 9DS: not on the flood risk listTR4 9DU: not on the flood risk listTR4 9DW: not on the flood risk listTR4 9DX: not on the flood risk listTR4 9DZ: not on the flood risk listTR4 9EB: not on the flood risk listTR4 9EE: not on the flood risk listTR4 9EF: not on the flood risk listTR4 9EG: not on the flood risk listTR4 9EJ: not on the flood risk listTR4 9EN: not on the flood risk listTR4 9EP: not on the flood risk listTR4 9EQ: not on the flood risk listTR4 9ER: not on the flood risk listTR4 9ES: not on the flood risk listTR4 9ET: not on the flood risk listTR4 9EU: not on the flood risk listTR4 9EW: not on the flood risk listTR4 9EX: not on the flood risk listTR4 9EY: not on the flood risk listTR4 9EZ: not on the flood risk listTR4 9FA: not on the flood risk listTR4 9FB: not on the flood risk listTR4 9FD: not on the flood risk listTR4 9FE: not on the flood risk listTR4 9FF: not on the flood risk listTR4 9FG: not on the flood risk listTR4 9FH: not on the flood risk listTR4 9FL: not on the flood risk listTR4 9FN: not on the flood risk listTR4 9FR: not on the flood risk listTR4 9FS: not on the flood risk listTR4 9FT: not on the flood risk listTR4 9FX: not on the flood risk listTR4 9FZ: not on the flood risk listTR4 9GA: not on the flood risk listTR4 9GE: not on the flood risk listTR4 9GF: not on the flood risk listTR4 9GN: not on the flood risk listTR4 9GX: not on the flood risk listTR4 9HA: not on the flood risk listTR4 9HB: not on the flood risk listTR4 9HD: not on the flood risk listTR4 9HE: not on the flood risk listTR4 9HF: not on the flood risk listTR4 9HG: not on the flood risk listTR4 9HH: not on the flood risk listTR4 9HJ: not on the flood risk listTR4 9HL: not on the flood risk listTR4 9HN: not on the flood risk listTR4 9HP: not on the flood risk listTR4 9HQ: not on the flood risk listTR4 9HS: not on the flood risk listTR4 9HU: not on the flood risk listTR4 9HW: not on the flood risk listTR4 9HZ: not on the flood risk listTR4 9JB: not on the flood risk listTR4 9JD: not on the flood risk listTR4 9JE: not on the flood risk listTR4 9JF: not on the flood risk listTR4 9JG: not on the flood risk listTR4 9JH: not on the flood risk listTR4 9JJ: not on the flood risk listTR4 9JL: not on the flood risk listTR4 9JQ: not on the flood risk listTR4 9JR: not on the flood risk listTR4 9JS: not on the flood risk listTR4 9JT: not on the flood risk listTR4 9JU: not on the flood risk listTR4 9JX: not on the flood risk listTR4 9JY: not on the flood risk listTR4 9JZ: not on the flood risk listTR4 9LA: not on the flood risk listTR4 9LB: not on the flood risk listTR4 9LD: not on the flood risk listTR4 9LE: not on the flood risk listTR4 9LF: not on the flood risk listTR4 9LG: not on the flood risk listTR4 9LJ: not on the flood risk listTR4 9LL: not on the flood risk listTR4 9LP: not on the flood risk listTR4 9LQ: not on the flood risk listTR4 9LR: not on the flood risk listTR4 9LS: not on the flood risk listTR4 9LT: not on the flood risk listTR4 9LU: not on the flood risk listTR4 9LX: not on the flood risk listTR4 9LY: not on the flood risk listTR4 9LZ: not on the flood risk listTR4 9NA: not on the flood risk listTR4 9ND: not on the flood risk listTR4 9NE: not on the flood risk listTR4 9NF: not on the flood risk listTR4 9NG: not on the flood risk listTR4 9NH: not on the flood risk listTR4 9NP: not on the flood risk listTR4 9NR: not on the flood risk listTR4 9NS: not on the flood risk listTR4 9NT: not on the flood risk listTR4 9NU: not on the flood risk listTR4 9NW: not on the flood risk listTR4 9NX: not on the flood risk listTR4 9NY: not on the flood risk listTR4 9NZ: not on the flood risk listTR4 9PB: not on the flood risk listTR4 9PD: not on the flood risk listTR4 9PF: not on the flood risk listTR4 9PG: not on the flood risk listTR4 9PH: not on the flood risk listTR4 9PJ: not on the flood risk listTR4 9PL: not on the flood risk listTR4 9PN: not on the flood risk listTR4 9PP: not on the flood risk listTR4 9PQ: not on the flood risk listTR4 9PS: not on the flood risk listTR4 9PT: not on the flood risk listTR4 9PU: not on the flood risk listTR4 9PY: not on the flood risk listTR4 9QA: not on the flood risk listTR4 9QD: not on the flood risk listTR4 9QE: not on the flood risk listTR4 9QG: not on the flood risk listTR4 9QH: not on the flood risk listTR4 9QJ: not on the flood risk listTR4 9QL: not on the flood risk listTR4 9QN: not on the flood risk listTR4 9QS: not on the flood risk listTR4 9QT: not on the flood risk listTR4 9QX: not on the flood risk listTR4 9RA: not on the flood risk listTR4 9RB: not on the flood risk listTR4 9RF: not on the flood risk listTR4 9RQ: not on the flood risk listTR4 9RR: not on the flood risk listTR4 9YF: not on the flood risk listTR4 8HX: low flood risk at worstTR4 8RL: low flood risk at worstTR4 8RN: low flood risk at worstTR4 8SX: low flood risk at worstTR4 9EH: low flood risk at worstTR4 9EL: low flood risk at worstTR4 9QU: low flood risk at worstTR4 8AR: medium flood risk at worstTR4 8RG: medium flood risk at worstTR4 8RW: medium flood risk at worstTR4 9ED: medium flood risk at worstTR4 8AA: high flood riskTR4 8AB: high flood riskTR4 8AF: high flood riskTR4 8BH: high flood riskTR4 8DH: high flood riskTR4 8DL: high flood riskTR4 8NL: high flood riskTR4 8GY: high flood riskTR4 8HG: high flood riskTR4 8JN: high flood riskTR4 8NH: high flood riskTR4 8QU: high flood riskTR4 8QZ: high flood riskTR4 8RA: high flood riskTR4 8RB: high flood riskTR4 8SH: high flood riskTR4 8SJ: high flood riskTR4 8SN: high flood riskTR4 8ST: high flood riskTR4 9EA: high flood riskTR4 9QQ: high flood riskTR4 9HR: high flood riskTR4 9LH: high flood riskTR4 9LN: high flood riskTR4 9NB: high flood riskTR4 9PE: high flood riskTR4 9PR: high flood riskTR4 9QR: high flood risk ThreemilestoneTruroRedruthSt AgnesPerranporthLanner 9 postcodes at high or medium risk, outlined: this goes to TR4 8AD, the one with most homes and businesses at high risk9 postcodes at high or medium risk5 postcodes at high or medium risk, outlined: this goes to TR4 8PT, the one with most homes and businesses at high risk5 postcodes at high or medium risk Map of every postcode in TR4, by flood risk Of the 524 postcodes in TR4 that ONS places, 32 have a home or business at high risk, 6 are at medium risk at worst, 10 are at low risk at worst and 476 are not on the Environment Agency's at-risk list. 2 groups of postcodes at high or medium risk are outlined: 9 postcodes at high or medium risk; 5 postcodes at high or medium risk. Places named: Threemilestone, Truro, Redruth, St Agnes. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 5 km. ThreemilestoneTruroRedruthSt Agnes
  • A home or business at high risk: 32
  • At medium risk at worst: 6
  • At low risk at worst: 10
  • At very low risk only: 0
  • Not on the at-risk list: 476
  • Outline: where 5 or more postcodes at high or medium risk lie together

Of the 524 postcodes in TR4 that ONS places, 32 have a home or business at high risk, 6 are at medium risk at worst, 10 are at low risk at worst and 476 are not on the Environment Agency's at-risk list.

Each mark is a postcode's centre point as ONS gives it, not a building. Press one to see its postcode and open its page. A dashed outline shows where 5 or more lie within 320 metres of each other. It is not a boundary, and no boundary is drawn. Where marks overlap, the one first in the key is drawn; the counts include every postcode.

The middle of its postcodes: latitude 50.2865, longitude -5.1376. Open this area on OpenStreetMap

Source: Office for National Statistics (ONS) Postcode Directory, August 2026, loaded 20 October 2026, the centre point of each postcode; flood risk: Environment Agency, published 6 July 2026; roads, rivers and built-up areas: Contains OS data © Crown copyright and database right 2026. Drawn by us. Street map: Ordnance Survey, OS Open Zoomstack, Open Government Licence v3.0, drawn with MapLibre. How we use them

The postcodes at high risk

32 postcodes here have a home or business at high risk. These are the 12 with the most homes and businesses at that risk.

Beside each: how many of its homes and businesses the Environment Agency puts at that risk.

TR4 8AD13 at high riskTR4 8HD10 at high riskTR4 8AA8 at high riskTR4 8UB6 at high riskTR4 9PR6 at high riskTR4 8AB5 at high riskTR4 9LH5 at high riskTR4 8SN4 at high riskTR4 8PT3 at high riskTR4 8QZ3 at high riskTR4 9LN3 at high riskTR4 8RA2 at high risk

Where the postcodes at high or medium risk lie together

  • 9 postcodes at high or medium risk, outlined on the map. TR4 8AD, is the one with most homes and businesses at high risk.
  • 5 postcodes at high or medium risk, outlined on the map. TR4 8PT, is the one with most homes and businesses at high risk.

What broadband can you get in TR4?

Ofcom reports on 518 of the 524 postcodes in TR4. At 150 of them every home and business can get gigabit broadband, and at 38 some cannot get decent broadband (10 Mbit/s).

Postcodes where every home can get gigabit150 of 518
Postcodes where every home can get superfast341 of 518
Postcodes where some cannot get decent broadband38 of 518

Ofcom gives each postcode's share of homes and businesses, not how many there are, so these count postcodes. Each postcode page has its own figures. A provider's checker answers for one address.

Check one address on Ofcom's checker

Source: Ofcom, Connected Nations, Spring 2026, data for January 2026, Open Government Licence v3.0. How we use it

Is TR4 at risk of flooding?

48 of the 524 postcodes in TR4 have a home or business in an area at risk of flooding from rivers or the sea, the Environment Agency says. At those, it puts 114 homes and businesses in an area at high or medium risk.

Homes and businesses in an area at risk, at 48 of 524 postcodes High: 93Medium: 21Low: 60

High: 3.3% or more a year (1 in 30). Medium: 1% to 3.3% a year. Low: 0.1% to 1% a year. Very low: under 0.1% a year (1 in 1,000). Each band is the chance of flooding in any one year.

Homes and businesses in an area at risk of flooding from rivers or the sea, as the Environment Agency counts them, added up over the postcodes. It is for the land, not each building, and leaves out surface water, groundwater and sewers. Each postcode page has its own figures and its flood warning areas.

Source: Environment Agency, Risk of Flooding from Rivers and Sea (postcodes in areas at risk), published 6 July 2026, Open Government Licence v3.0. How we use it

What do homes sell for in TR4?

Homes in TR4 sold for a typical £329,000 in the 12 months to August 2026, across 146 sales, down 3.2% on the 12 months before, HM Land Registry's figures show.

£329,000 typical price, the 12 months to August 2026
12 months to August 2025
£340,000
12 months to August 2026
£329,000

▼ down 3.2% on the 12 months before

Detached£462,250 62 sales
Semi-detached£324,000 40 sales
Terraced£204,750 40 sales
Flat or maisonette 4 sales, too few to price

Standard sales of homes at market value. A typical price is the median, the middle sale. Sales take weeks to be registered, so the last month or two are incomplete. Each postcode page gives the figure for its own postcode sector.

Source: HM Land Registry Price Paid Data, files dated 28 September 2026. Contains HM Land Registry data © Crown copyright and database right 2021. This data is licensed under the Open Government Licence v3.0. How we use it

Postcodes in TR4

Pick a sector, then a postcode. A sector is the district plus the next digit.

TR4 8295 postcodesTR4 9229 postcodes
UK postcode format explained

Places in TR4

Towns and villages with postcodes in TR4, and how many each has here.

Threemilestone postcodes,15Truro postcodes,1

Who covers TR4

How many of the district's postcodes in use fall under each council, constituency and police force area.

Councils

What council am I in?

Constituencies

  • Truro and Falmouth332
  • Camborne and Redruth192

Police force areas

  • Devon & Cornwall524

Next to TR4

TR3 postcode district TR5 postcode district All TR districts Threemilestone postcodes

"Next to" is by number: the districts before and after TR4 in the TR area.

Check a postcode

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