NN4 postcode area guide — West Northamptonshire

Where is NN4?

Broadband & internet speeds in NN4

Excellent coverage

Broadband availability in the NN4 postcode district (West Northamptonshire) is Excellent — gigabit-capable full fibre is widely available. Across the 917 postcodes Ofcom measures in NN4, superfast broadband (30 Mbit/s or faster) reaches 98% of premises and gigabit-capable lines are available to 96%.

Around 0% of premises in NN4 fall below the Universal Service Obligation (a minimum of 10 Mbit/s download and 1 Mbit/s upload), so the overwhelming majority of homes and businesses here can already order a decent fixed line. For a business that depends on its connection, the figures that matter most are gigabit and full-fibre availability — the symmetric, low-contention services we quote leased lines and FTTP against.

Sample postcodes in NN4

Run a speed test to see what you're actually getting, or check your exact postcode.

Mobile signal around West Northamptonshire

Ofcom's coverage model for the wider West Northamptonshire district (196,789 premises):

Signal varies street by street — use the mobile coverage checker to compare EE, O2, Three and Vodafone at an exact postcode.

Crime in NN4

Police recorded 189 incidents within about a mile of the centre of NN4 in May 2026 (latest published street-level data). The breakdown:

Raw counts favour busy town centres — a high street with shops and nightlife records more incidents than a residential cul-de-sac. Source: police.uk open data (point sample around the district centroid).

House prices in NN4

Based on 586 sales registered with HM Land Registry in the last 12 months, the median sold price in NN4 is £295,000, down 2.3% on the previous year (£301,806).

Latest recorded sales in NN4

Contains HM Land Registry data © Crown copyright and database right 2026, licensed under the Open Government Licence v3.0.

Who lives here? West Northamptonshire demographics

Census 2021 figures for the wider West Northamptonshire district (425,727 residents, 172,639 households):

Source: ONS Census 2021 (district level — the finest openly licensed cut we republish). © Crown copyright, OGL v3.0.

Schools in and around NN4

Source: DfE Get Information about Schools (England & Wales). Check Ofsted report cards for inspection detail — headline one-word grades were retired in 2024.

Food hygiene ratings in NN4

286 rated food businesses operate in NN4. 175 hold the top rating of 5, 21 are rated 4, and 9 are rated 2 or below.

Among the 5-rated: Asda, Co-Op Late Shop, Collingtree Park Care Home, Costa, Giggling Sausage.

Source: Food Standards Agency, food hygiene ratings (FHRS) open data.

Energy performance (EPC) in NN4

From a sample of 363 Energy Performance Certificates across 11 NN4 postcodes, the most common rating is band C (average band C). 60% of sampled homes are rated C or better.

Source: MHCLG Energy Performance of Buildings Data (England & Wales), sampled at postcode level and refreshed monthly. Individual certificates are on each postcode’s page.

Phone area codes for West Northamptonshire

Landlines around NN4 typically use:

Had a call from an unknown number? Use our free UK phone number checker to see who called.

What's it like living in NN4?

Postcodes in NN4

Neighbouring districts

All Northampton (NN) postcode districts ›

Frequently asked questions

Sources: HM Land Registry Price Paid Data, police.uk street-level crime, Ofcom Connected Nations, ONS Census 2021, DfE Get Information about Schools, Food Standards Agency FHRS — all © Crown copyright, licensed under the Open Government Licence v3.0. Figures are area aggregates; individual addresses vary. Energy performance (EPC) data will be added when our Open Data Communities registration is approved.