CM4 postcode district: Ingatestone and around, Essex

CM4 is a postcode district in Essex, with 442 postcodes in use in 2 sectors. It has postcodes in Ingatestone, Stock, Billericay and 1 more place. It is split between 4 councils: Brentwood (250 postcodes), Chelmsford (165), Epping Forest (23) and 1 other.

Postcodes in use
442
Sectors
2
Councils
4 councils
Places
4 places

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

Every postcode in CM4, by flood risk

Map of every postcode in CM4, by flood risk Of the 442 postcodes in CM4 that ONS places, 12 have a home or business at high risk, 3 are at medium risk at worst, 9 are at low risk at worst and 418 are not on the Environment Agency's at-risk list. Places named: Ingatestone, Galleywood, Doddinghurst, Stock. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 2.5 km. A414 CM4 0AA: not on the flood risk listCM4 0AB: not on the flood risk listCM4 0AD: not on the flood risk listCM4 0AE: not on the flood risk listCM4 0AF: not on the flood risk listCM4 0AG: not on the flood risk listCM4 0AH: not on the flood risk listCM4 0AL: not on the flood risk listCM4 0AN: not on the flood risk listCM4 0AQ: not on the flood risk listCM4 0AT: not on the flood risk listCM4 0AU: not on the flood risk listCM4 0BG: not on the flood risk listCM4 0BH: not on the flood risk listCM4 0BL: not on the flood risk listCM4 0BQ: not on the flood risk listCM4 0BW: not on the flood risk listCM4 0DA: not on the flood risk listCM4 0DB: not on the flood risk listCM4 0DE: not on the flood risk listCM4 0DF: not on the flood risk listCM4 0DH: not on the flood risk listCM4 0DJ: not on the flood risk listCM4 0DP: not on the flood risk listCM4 0DQ: not on the flood risk listCM4 0DS: not on the flood risk listCM4 0DU: not on the flood risk listCM4 0DW: not on the flood risk listCM4 0DX: not on the flood risk listCM4 0DY: not on the flood risk listCM4 0DZ: not on the flood risk listCM4 0EA: not on the flood risk listCM4 0EB: not on the flood risk listCM4 0EE: not on the flood risk listCM4 0EF: not on the flood risk listCM4 0EH: not on the flood risk listCM4 0EJ: not on the flood risk listCM4 0EL: not on the flood risk listCM4 0EP: not on the flood risk listCM4 0ER: not on the flood risk listCM4 0ET: not on the flood risk listCM4 0EX: not on the flood risk listCM4 0EY: not on the flood risk listCM4 0EZ: not on the flood risk listCM4 0FL: not on the flood risk listCM4 0FN: not on the flood risk listCM4 0FP: not on the flood risk listCM4 0FQ: not on the flood risk listCM4 0FR: not on the flood risk listCM4 0FT: not on the flood risk listCM4 0FU: not on the flood risk listCM4 0FW: not on the flood risk listCM4 0GB: not on the flood risk listCM4 0GF: not on the flood risk listCM4 0HA: not on the flood risk listCM4 0HB: not on the flood risk listCM4 0HD: not on the flood risk listCM4 0HH: not on the flood risk listCM4 0HJ: not on the flood risk listCM4 0HL: not on the flood risk listCM4 0HN: not on the flood risk listCM4 0HP: not on the flood risk listCM4 0HR: not on the flood risk listCM4 0HU: not on the flood risk listCM4 0HW: not on the flood risk listCM4 0HX: not on the flood risk listCM4 0HY: not on the flood risk listCM4 0HZ: not on the flood risk listCM4 0JA: not on the flood risk listCM4 0JB: not on the flood risk listCM4 0JD: not on the flood risk listCM4 0JE: not on the flood risk listCM4 0JF: not on the flood risk listCM4 0JN: not on the flood risk listCM4 0JR: not on the flood risk listCM4 0JS: not on the flood risk listCM4 0JT: not on the flood risk listCM4 0JU: not on the flood risk listCM4 0JW: not on the flood risk listCM4 0JX: not on the flood risk listCM4 0JY: not on the flood risk listCM4 0JZ: not on the flood risk listCM4 0LA: not on the flood risk listCM4 0LB: not on the flood risk listCM4 0LD: not on the flood risk listCM4 0LE: not on the flood risk listCM4 0LF: not on the flood risk listCM4 0LG: not on the flood risk listCM4 0LH: not on the flood risk listCM4 0LJ: not on the flood risk listCM4 0LL: not on the flood risk listCM4 0LN: not on the flood risk listCM4 0LP: not on the flood risk listCM4 0LQ: not on the flood risk listCM4 0LR: not on the flood risk listCM4 0LS: not on the flood risk listCM4 0LT: not on the flood risk listCM4 0LW: not on the flood risk listCM4 0NJ: not on the flood risk listCM4 0NL: not on the flood risk listCM4 0NN: not on the flood risk listCM4 0NP: not on the flood risk listCM4 0NQ: not on the flood risk listCM4 0NR: not on the flood risk listCM4 0NS: not on the flood risk listCM4 0NT: not on the flood risk listCM4 0NU: not on the flood risk listCM4 0NW: not on the flood risk listCM4 0NX: not on the flood risk listCM4 0NY: not on the flood risk listCM4 0PA: not on the flood risk listCM4 0PB: not on the flood risk listCM4 0PD: not on the flood risk listCM4 0PE: not on the flood risk listCM4 0PF: not on the flood risk listCM4 0PG: not on the flood risk listCM4 0PH: not on the flood risk listCM4 0PJ: not on the flood risk listCM4 0PN: not on the flood risk listCM4 0PP: not on the flood risk listCM4 0PQ: not on the flood risk listCM4 0PR: not on the flood risk listCM4 0PS: not on the flood risk listCM4 0PT: not on the flood risk listCM4 0PW: not on the flood risk listCM4 0PX: not on the flood risk listCM4 0PY: not on the flood risk listCM4 0PZ: not on the flood risk listCM4 0QA: not on the flood risk listCM4 0QB: not on the flood risk listCM4 0QH: not on the flood risk listCM4 0QJ: not on the flood risk listCM4 0QL: not on the flood risk listCM4 0QN: not on the flood risk listCM4 0QP: not on the flood risk listCM4 0QR: not on the flood risk listCM4 0QS: not on the flood risk listCM4 0QT: not on the flood risk listCM4 0QY: not on the flood risk listCM4 0QZ: not on the flood risk listCM4 0RB: not on the flood risk listCM4 0RD: not on the flood risk listCM4 0RN: not on the flood risk listCM4 0RS: not on the flood risk listCM4 0RT: not on the flood risk listCM4 0RU: not on the flood risk listCM4 0RX: not on the flood risk listCM4 0SA: not on the flood risk listCM4 0SD: not on the flood risk listCM4 0SE: not on the flood risk listCM4 0SF: not on the flood risk listCM4 0SG: not on the flood risk listCM4 0SP: not on the flood risk listCM4 0SQ: not on the flood risk listCM4 0SY: not on the flood risk listCM4 0WG: not on the flood risk listCM4 9AA: not on the flood risk listCM4 9AF: not on the flood risk listCM4 9AG: not on the flood risk listCM4 9AL: not on the flood risk listCM4 9AN: not on the flood risk listCM4 9AP: not on the flood risk listCM4 9AQ: not on the flood risk listCM4 9AY: not on the flood risk listCM4 9AZ: not on the flood risk listCM4 9BA: not on the flood risk listCM4 9BE: not on the flood risk listCM4 9BG: not on the flood risk listCM4 9BH: not on the flood risk listCM4 9BJ: not on the flood risk listCM4 9BL: not on the flood risk listCM4 9BP: not on the flood risk listCM4 9BQ: not on the flood risk listCM4 9BS: not on the flood risk listCM4 9BT: not on the flood risk listCM4 9BW: not on the flood risk listCM4 9BX: not on the flood risk listCM4 9BY: not on the flood risk listCM4 9BZ: not on the flood risk listCM4 9DB: not on the flood risk listCM4 9DD: not on the flood risk listCM4 9DE: not on the flood risk listCM4 9DJ: not on the flood risk listCM4 9DN: not on the flood risk listCM4 9DP: not on the flood risk listCM4 9DQ: not on the flood risk listCM4 9DS: not on the flood risk listCM4 9DT: not on the flood risk listCM4 9DX: not on the flood risk listCM4 9DY: not on the flood risk listCM4 9DZ: not on the flood risk listCM4 9EE: not on the flood risk listCM4 9EF: not on the flood risk listCM4 9EG: not on the flood risk listCM4 9EH: not on the flood risk listCM4 9EX: not on the flood risk listCM4 9EZ: not on the flood risk listCM4 9FA: not on the flood risk listCM4 9FB: not on the flood risk listCM4 9FF: not on the flood risk listCM4 9FG: not on the flood risk listCM4 9FL: not on the flood risk listCM4 9FN: not on the flood risk listCM4 9FP: not on the flood risk listCM4 9FQ: not on the flood risk listCM4 9FS: not on the flood risk listCM4 9FT: not on the flood risk listCM4 9GL: not on the flood risk listCM4 9HB: not on the flood risk listCM4 9HD: not on the flood risk listCM4 9HE: not on the flood risk listCM4 9HF: not on the flood risk listCM4 9HG: not on the flood risk listCM4 9HH: not on the flood risk listCM4 9HJ: not on the flood risk listCM4 9HL: not on the flood risk listCM4 9HP: not on the flood risk listCM4 9HQ: not on the flood risk listCM4 9HU: not on the flood risk listCM4 9HX: not on the flood risk listCM4 9HZ: not on the flood risk listCM4 9JA: not on the flood risk listCM4 9JB: not on the flood risk listCM4 9JF: not on the flood risk listCM4 9JG: not on the flood risk listCM4 9JJ: not on the flood risk listCM4 9JL: not on the flood risk listCM4 9JN: not on the flood risk listCM4 9JP: not on the flood risk listCM4 9JQ: not on the flood risk listCM4 9JR: not on the flood risk listCM4 9JS: not on the flood risk listCM4 9JT: not on the flood risk listCM4 9JU: not on the flood risk listCM4 9JW: not on the flood risk listCM4 9JX: not on the flood risk listCM4 9JY: not on the flood risk listCM4 9JZ: not on the flood risk listCM4 9LA: not on the flood risk listCM4 9LD: not on the flood risk listCM4 9LE: not on the flood risk listCM4 9LL: not on the flood risk listCM4 9LN: not on the flood risk listCM4 9LR: not on the flood risk listCM4 9LT: not on the flood risk listCM4 9LX: not on the flood risk listCM4 9LY: not on the flood risk listCM4 9LZ: not on the flood risk listCM4 9NA: not on the flood risk listCM4 9ND: not on the flood risk listCM4 9NE: not on the flood risk listCM4 9NF: not on the flood risk listCM4 9NH: not on the flood risk listCM4 9NL: not on the flood risk listCM4 9NP: not on the flood risk listCM4 9NQ: not on the flood risk listCM4 9NR: not on the flood risk listCM4 9NT: not on the flood risk listCM4 9NU: not on the flood risk listCM4 9NX: not on the flood risk listCM4 9NY: not on the flood risk listCM4 9NZ: not on the flood risk listCM4 9PA: not on the flood risk listCM4 9PE: not on the flood risk listCM4 9PF: not on the flood risk listCM4 9PG: not on the flood risk listCM4 9PH: not on the flood risk listCM4 9PJ: not on the flood risk listCM4 9PN: not on the flood risk listCM4 9PP: not on the flood risk listCM4 9PR: not on the flood risk listCM4 9PS: not on the flood risk listCM4 9PT: not on the flood risk listCM4 9PU: not on the flood risk listCM4 9PW: not on the flood risk listCM4 9PY: not on the flood risk listCM4 9QA: not on the flood risk listCM4 9QB: not on the flood risk listCM4 9QD: not on the flood risk listCM4 9QE: not on the flood risk listCM4 9QF: not on the flood risk listCM4 9QL: not on the flood risk listCM4 9QP: not on the flood risk listCM4 9QR: not on the flood risk listCM4 9QS: not on the flood risk listCM4 9QT: not on the flood risk listCM4 9QU: not on the flood risk listCM4 9QW: not on the flood risk listCM4 9QX: not on the flood risk listCM4 9QY: not on the flood risk listCM4 9RA: not on the flood risk listCM4 9RB: not on the flood risk listCM4 9RD: not on the flood risk listCM4 9RE: not on the flood risk listCM4 9RF: not on the flood risk listCM4 9RG: not on the flood risk listCM4 9RH: not on the flood risk listCM4 9RJ: not on the flood risk listCM4 9RL: not on the flood risk listCM4 9RN: not on the flood risk listCM4 9RP: not on the flood risk listCM4 9RS: not on the flood risk listCM4 9RT: not on the flood risk listCM4 9RU: not on the flood risk listCM4 9RW: not on the flood risk listCM4 9RY: not on the flood risk listCM4 9RZ: not on the flood risk listCM4 9SB: not on the flood risk listCM4 9SD: not on the flood risk listCM4 9SX: not on the flood risk listCM4 9TA: not on the flood risk listCM4 9TB: not on the flood risk listCM4 9TL: not on the flood risk listCM4 0LU: low flood risk at worstCM4 0NZ: low flood risk at worstCM4 0RR: low flood risk at worstCM4 9AJ: low flood risk at worstCM4 9AW: low flood risk at worstCM4 9DR: low flood risk at worstCM4 9NN: low flood risk at worstCM4 9NS: low flood risk at worstCM4 0QE: medium flood risk at worstCM4 9AD: medium flood risk at worstCM4 9AH: medium flood risk at worstCM4 0BA: high flood riskCM4 0BU: high flood riskCM4 0DD: high flood riskCM4 0EG: high flood riskCM4 0EW: high flood riskCM4 0PU: high flood riskCM4 9AE: high flood riskCM4 9AR: high flood riskCM4 9PD: high flood riskCM4 9QN: high flood risk IngatestoneGalleywoodDoddinghurstStock Map of every postcode in CM4, by flood risk Of the 442 postcodes in CM4 that ONS places, 12 have a home or business at high risk, 3 are at medium risk at worst, 9 are at low risk at worst and 418 are not on the Environment Agency's at-risk list. Places named: Ingatestone, Galleywood, Stock. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 2.5 km. IngatestoneGalleywoodStock
  • A home or business at high risk: 12
  • At medium risk at worst: 3
  • At low risk at worst: 9
  • At very low risk only: 0
  • Not on the at-risk list: 418

Of the 442 postcodes in CM4 that ONS places, 12 have a home or business at high risk, 3 are at medium risk at worst, 9 are at low risk at worst and 418 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. 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 51.6751, longitude 0.3894. 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

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

CM4 0FG8 at high riskCM4 9AR6 at high riskCM4 9QN5 at high riskCM4 0BA4 at high riskCM4 9PD3 at high riskCM4 9AE2 at high riskCM4 0EQ2 at high riskCM4 0EW1 at high riskCM4 0BU1 at high riskCM4 0DD1 at high riskCM4 0EG1 at high riskCM4 0PU1 at high risk

What broadband can you get in CM4?

Ofcom reports on 422 of the 442 postcodes in CM4. At 141 of them every home and business can get gigabit broadband, and at 1 some cannot get decent broadband (10 Mbit/s).

Postcodes where every home can get gigabit141 of 422
Postcodes where every home can get superfast345 of 422
Postcodes where some cannot get decent broadband1 of 422

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 CM4 at risk of flooding?

24 of the 442 postcodes in CM4 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 54 homes and businesses in an area at high or medium risk.

Homes and businesses in an area at risk, at 24 of 442 postcodes High: 35Medium: 19Low: 69

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 CM4?

Homes in CM4 sold for a typical £672,500 in the 12 months to August 2026, across 132 sales, down 7.4% on the 12 months before, HM Land Registry's figures show.

£672,500 typical price, the 12 months to August 2026
£726,198 12 months to August 2025
▼ down 7.4% on the 12 months before
  • Detached £905,000 69 sales
  • Semi-detached £602,500 34 sales
  • Terraced £555,000 14 sales
  • Flat or maisonette £300,000 15 sales

Each bar is that kind's typical price, against the most expensive kind here.

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 CM4

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

CM4 0209 postcodesCM4 9233 postcodes
UK postcode format explained

Places in CM4

Towns and villages with postcodes in CM4, and how many each has here.

Ingatestone postcodes,143Stock postcodes,79Billericay postcodes,4Galleywood postcodes,4

Who covers CM4

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

  • Brentwood and Ongar273
  • Maldon158
  • North West Essex7
  • Basildon and Billericay4

Police force areas

  • Essex442

Next to CM4

CM3 postcode district CM5 postcode district All CM districts Ingatestone postcodes

"Next to" is by number: the districts before and after CM4 in the CM area.

Check a postcode

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