NN1 postcode area guide — West Northamptonshire
House prices, crime, broadband speeds, mobile signal, schools and demographics for the NN1 postcode district in West Northamptonshire — every official dataset on one page.
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Where is NN1?
Broadband & internet speeds in NN1
Strong coverage
Superfast (30Mb+)
95.9%
Ultrafast (300Mb+)
75.2%
Gigabit-capable
75.2%
Below USO (10Mb)
0%
Broadband availability in the NN1 postcode district (West Northamptonshire) is Strong — superfast is near-universal and gigabit is rolling out. Across the 716 postcodes Ofcom measures in NN1, superfast broadband (30 Mbit/s or faster) reaches 95.9% of premises and gigabit-capable lines are available to 75.2%.
Around 0% of premises in NN1 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 NN1
| Postcode | Superfast | Gigabit |
|---|---|---|
| NN1 1AJ | 100% | 0% |
| NN1 1BF | 100% | 0% |
| NN1 1BQ | 66.7% | 0% |
| NN1 1DA | 75% | 0% |
| NN1 1DF | 100% | 0% |
| NN1 1DH | 0.3% | 0.3% |
| NN1 1DJ | 0% | 0% |
| NN1 1DP | 64.3% | 0% |
| NN1 1DQ | 100% | 100% |
| NN1 1DX | 100% | 0% |
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):
4G indoors — all networks
89.5%
4G outdoors — all networks
99.3%
5G outdoors — all networks
61.8%
Voice indoors — all networks
91%
Signal varies street by street — use the mobile coverage checker to compare EE, O2, Three and Vodafone at an exact postcode.
Crime in NN1
Police recorded 1,090 incidents within about a mile of the centre of NN1 in May 2026 (latest published street-level data). The breakdown:
| Category | Incidents | Share |
|---|---|---|
| Violence & sexual offences | 326 | 29.9% |
| Anti-social behaviour | 291 | 26.7% |
| Other theft | 77 | 7.1% |
| Public order | 66 | 6.1% |
| Shoplifting | 64 | 5.9% |
| Drugs | 54 | 5.0% |
| Vehicle crime | 50 | 4.6% |
| Criminal damage & arson | 48 | 4.4% |
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 NN1
Based on 353 sales registered with HM Land Registry in the last 12 months, the median sold price in NN1 is £203,000, down 3.3% on the previous year (£210,000).
Detached
£520,000
5 sales
Semi-detached
£277,900
15 sales
Terraced
£220,000
219 sales
Flat / maisonette
£145,000
97 sales
Latest recorded sales in NN1
| Date | Price | Type | Street | Postcode |
|---|---|---|---|---|
| 22 May 2026 | £57,500 | Flat | Albion Place | NN1 1UG |
| 22 May 2026 | £245,000 | Terraced | Brookland Road | NN1 4SN |
| 21 May 2026 | £345,000 | Terraced | Birchfield Road | NN1 4RQ |
| 15 May 2026 | £165,000 | Terraced | Somerset Street | NN1 3LW |
| 15 May 2026 | £170,000 | Terraced | Cloutsham Street | NN1 3LL |
| 14 May 2026 | £316,500 | Terraced | Upper Thrift Street | NN1 5HR |
| 11 May 2026 | £150,000 | Terraced | Brook Street | NN1 2PE |
| 11 May 2026 | £150,000 | Flat | Beckets View | NN1 5NQ |
| 8 May 2026 | £171,500 | Flat | The Drive | NN1 4RY |
| 8 May 2026 | £200,000 | Terraced | Turner Street | NN1 4JJ |
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):
| Age profile | |
|---|---|
| Under 15 | 19.3% |
| 15–29 | 23.8% |
| 30–44 | 20.5% |
| 45–64 | 19.4% |
| 65+ | 17.1% |
| Housing tenure | |
|---|---|
| Owner-occupied | 64.9% |
| Private rented | 19.3% |
| Social rented | 7.4% |
Source: ONS Census 2021 (district level — the finest openly licensed cut we republish). © Crown copyright, OGL v3.0.
Schools in and around NN1
| School | Phase | Ages | Pupils | Postcode |
|---|---|---|---|---|
| Northampton School for Boys | Secondary | 11–18 | 1,756 | NN1 5RT |
| Northampton International Academy | All-through | 4–18 | 1,754 | NN1 1AA |
| Castle Academy | Primary | 3–11 | 455 | NN1 2TR |
| Barry Primary School | Primary | 3–11 | 441 | NN1 5JS |
| Stimpson Avenue Academy | Primary | 3–11 | 440 | NN1 4LR |
| Spring Lane Primary School | Primary | 3–11 | 434 | NN1 2JW |
| Vernon Terrace Primary School | Primary | 3–11 | 233 | NN1 5HE |
| The CE Academy | Not applicable | 11–16 | 124 | NN1 3EX |
Source: DfE Get Information about Schools (England & Wales). Check Ofsted report cards for inspection detail — headline one-word grades were retired in 2024.
Energy performance (EPC) in NN1
From a sample of 369 Energy Performance Certificates across 10 NN1 postcodes, the most common rating is band D (average band C). 56% of sampled homes are rated C or better.
Band B
24%
Band C
32%
Band D
32%
Band E
10%
Band F
1%
Band G
1%
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 NN1 typically use:
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What's it like living in NN1?
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Moving to NN1? Sort your connectivity first
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Postcodes in NN1
Neighbouring districts
All Northampton (NN) postcode districts ›
Frequently asked questions
Where is the NN1 postcode?
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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.