NN18 postcode area guide — North Northamptonshire

Where is NN18?

Broadband & internet speeds in NN18

Excellent coverage

Broadband availability in the NN18 postcode district (North Northamptonshire) is Excellent — gigabit-capable full fibre is widely available. Across the 647 postcodes Ofcom measures in NN18, superfast broadband (30 Mbit/s or faster) reaches 98.7% of premises and gigabit-capable lines are available to 91%.

Around 0% of premises in NN18 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 NN18

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

Mobile signal around North Northamptonshire

Ofcom's coverage model for the wider North Northamptonshire district (172,437 premises):

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

Crime in NN18

Police recorded 285 incidents within about a mile of the centre of NN18 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 NN18

Based on 350 sales registered with HM Land Registry in the last 12 months, the median sold price in NN18 is £216,000, essentially flat on the previous year (£215,000).

Latest recorded sales in NN18

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

Who lives here? North Northamptonshire demographics

Census 2021 figures for the wider North Northamptonshire district (359,523 residents, 148,918 households):

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

Schools in and around NN18

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 NN18

123 rated food businesses operate in NN18. 93 hold the top rating of 5, 16 are rated 4, and 2 are rated 2 or below.

Among the 5-rated: Aldi, Autumn Centre, Bartlett Mitchell Ltd C/O BSH, Beefeater Oakley Hay, Big Bs Ices.

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

Energy performance (EPC) in NN18

From a sample of 200 Energy Performance Certificates across 12 NN18 postcodes, the most common rating is band D (average band D). 47% 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 North Northamptonshire

Landlines around NN18 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 NN18?

Postcodes in NN18

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.