SG10 postcode district: Hertfordshire

SG10 is a postcode district in Hertfordshire, with 108 postcodes in use in 1 sector. Its council is East Hertfordshire.

Postcodes in use
108
Sectors
1

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

Every postcode in SG10, by flood risk

Map of every postcode in SG10, by flood risk Of the 108 postcodes in SG10 that ONS places, 4 have a home or business at high risk, 2 are at medium risk at worst, 2 are at low risk at worst and 100 are not on the Environment Agency's at-risk list. Places named: Much Hadham. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 1 km. SG10 6AA: not on the flood risk listSG10 6AB: not on the flood risk listSG10 6AD: not on the flood risk listSG10 6AE: not on the flood risk listSG10 6AF: not on the flood risk listSG10 6AH: not on the flood risk listSG10 6AJ: not on the flood risk listSG10 6AL: not on the flood risk listSG10 6AN: not on the flood risk listSG10 6AQ: not on the flood risk listSG10 6AR: not on the flood risk listSG10 6AS: not on the flood risk listSG10 6AT: not on the flood risk listSG10 6AU: not on the flood risk listSG10 6AW: not on the flood risk listSG10 6AX: not on the flood risk listSG10 6AY: not on the flood risk listSG10 6AZ: not on the flood risk listSG10 6BA: not on the flood risk listSG10 6BB: not on the flood risk listSG10 6BD: not on the flood risk listSG10 6BE: not on the flood risk listSG10 6BF: not on the flood risk listSG10 6BG: not on the flood risk listSG10 6BH: not on the flood risk listSG10 6BJ: not on the flood risk listSG10 6BN: not on the flood risk listSG10 6BP: not on the flood risk listSG10 6BQ: not on the flood risk listSG10 6BS: not on the flood risk listSG10 6BT: not on the flood risk listSG10 6BU: not on the flood risk listSG10 6BW: not on the flood risk listSG10 6BX: not on the flood risk listSG10 6BY: not on the flood risk listSG10 6BZ: not on the flood risk listSG10 6DB: not on the flood risk listSG10 6DD: not on the flood risk listSG10 6DE: not on the flood risk listSG10 6DF: not on the flood risk listSG10 6DH: not on the flood risk listSG10 6DL: not on the flood risk listSG10 6DP: not on the flood risk listSG10 6DT: not on the flood risk listSG10 6DU: not on the flood risk listSG10 6DW: not on the flood risk listSG10 6DX: not on the flood risk listSG10 6DY: not on the flood risk listSG10 6DZ: not on the flood risk listSG10 6EA: not on the flood risk listSG10 6EB: not on the flood risk listSG10 6ED: not on the flood risk listSG10 6EE: not on the flood risk listSG10 6EF: not on the flood risk listSG10 6EG: not on the flood risk listSG10 6EH: not on the flood risk listSG10 6EL: not on the flood risk listSG10 6EN: not on the flood risk listSG10 6EP: not on the flood risk listSG10 6EQ: not on the flood risk listSG10 6ER: not on the flood risk listSG10 6ES: not on the flood risk listSG10 6ET: not on the flood risk listSG10 6EU: not on the flood risk listSG10 6EW: not on the flood risk listSG10 6EZ: not on the flood risk listSG10 6FA: not on the flood risk listSG10 6FB: not on the flood risk listSG10 6FD: not on the flood risk listSG10 6FE: not on the flood risk listSG10 6FF: not on the flood risk listSG10 6HD: not on the flood risk listSG10 6HG: not on the flood risk listSG10 6HH: not on the flood risk listSG10 6HJ: not on the flood risk listSG10 6HL: not on the flood risk listSG10 6HN: not on the flood risk listSG10 6HP: not on the flood risk listSG10 6HQ: not on the flood risk listSG10 6HR: not on the flood risk listSG10 6HT: not on the flood risk listSG10 6HU: not on the flood risk listSG10 6HX: not on the flood risk listSG10 6HY: not on the flood risk listSG10 6HZ: not on the flood risk listSG10 6JA: not on the flood risk listSG10 6JB: not on the flood risk listSG10 6JD: not on the flood risk listSG10 6JE: not on the flood risk listSG10 6JF: not on the flood risk listSG10 6JG: not on the flood risk listSG10 6JH: not on the flood risk listSG10 6JJ: not on the flood risk listSG10 6JL: not on the flood risk listSG10 6JN: not on the flood risk listSG10 6JP: not on the flood risk listSG10 6JQ: not on the flood risk listSG10 6JW: not on the flood risk listSG10 6LD: not on the flood risk listSG10 6DS: low flood risk at worstSG10 6EY: low flood risk at worstSG10 6AP: medium flood risk at worstSG10 6EJ: medium flood risk at worstSG10 6DG: high flood riskSG10 6DQ: high flood riskSG10 6HS: high flood riskSG10 6HW: high flood risk Much Hadham Map of every postcode in SG10, by flood risk Of the 108 postcodes in SG10 that ONS places, 4 have a home or business at high risk, 2 are at medium risk at worst, 2 are at low risk at worst and 100 are not on the Environment Agency's at-risk list. Places named: Much Hadham. Drawn over roads, rivers and built-up areas. North is up; the scale bar is 1 km. Much Hadham
  • A home or business at high risk: 4
  • At medium risk at worst: 2
  • At low risk at worst: 2
  • At very low risk only: 0
  • Not on the at-risk list: 100

Of the 108 postcodes in SG10 that ONS places, 4 have a home or business at high risk, 2 are at medium risk at worst, 2 are at low risk at worst and 100 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. Names in italics are council wards: we hold no town or village names here.

The middle of its postcodes: latitude 51.8471, longitude 0.0763. 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.

What broadband can you get in SG10?

Ofcom reports on 108 of the 108 postcodes in SG10. At 29 of them every home and business can get gigabit broadband, and at 2 some cannot get decent broadband (10 Mbit/s).

Postcodes where every home can get gigabit29 of 108
Postcodes where every home can get superfast88 of 108
Postcodes where some cannot get decent broadband2 of 108

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 SG10 at risk of flooding?

8 of the 108 postcodes in SG10 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 7 homes and businesses in an area at high or medium risk.

Homes and businesses in an area at risk, at 8 of 108 postcodes High: 4Medium: 3Low: 2

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 SG10?

Homes in SG10 sold for a typical £645,000 in the 12 months to August 2026, across 18 sales, down 17.3% on the 12 months before, HM Land Registry's figures show.

£645,000 typical price, the 12 months to August 2026
£780,000 12 months to August 2025
▼ down 17.3% on the 12 months before
  • Detached £850,000 9 sales
  • Semi-detached 4 sales, too few to price
  • Terraced 3 sales, too few to price
  • Flat or maisonette 2 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 SG10

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

UK postcode format explained

Places in SG10

We list no town or village for SG10. A place gets a page here only when enough postcodes are in one: a town or village here is a built-up area named by the Office for National Statistics in England and Wales, or a census locality named by National Records of Scotland. Every SG10 postcode is here, under its sector above.

Who covers SG10

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

  • Hertford and Stortford107
  • North East Hertfordshire1

Police force areas

  • Hertfordshire108

Next to SG10

"Next to" is by number: the districts before and after SG10 in the SG area.

Check a postcode

Something wrong on this page? Report an error and we will check it against the source.