Crime and Safety in North Mymms
Last updated: 07 Jun 2026
North Mymms is among the top 5 safest small towns in Hertfordshire, and is the 67th safest overall out of Hertfordshire's 140 towns, villages, and cities. The overall crime rate in North Mymms in 2026 is 44 crimes per 1,000 people. This compares favourably to Hertfordshire's overall crime rate, coming in 27% lower than the Hertfordshire rate of 60 per 1,000 daytime population. For England, Wales, and Northern Ireland as a whole, North Mymms is the 225th safest small town, and the 4,116th most dangerous location out of all towns, cities, and villages.
In January 2021, North Mymms had the worst crime rate in Hertfordshire for robbery, with 2 crimes reported and a crime rate of 0.20 per 1,000 daytime population. And in March 2025, North Mymms was the worst small town in Hertfordshire for other crime, with 3 crimes reported and a crime rate of 0.29 per 1,000 daytime population. April 2025 was also a bad month for North Mymms residents, when it was again Hertfordshire's most dangerous small town for other crime, recording 2 crimes at a rate of 0.20 per 1,000 daytime population.
The most common crimes in North Mymms are violence and sexual offences, with 186 offences during 2026, giving a crime rate of 18. This is 3.1% lower than 2025's figure of 192 offences and a difference of 0.59 from 2025's crime rate of 19. North Mymms's least common crime is theft from the person, with 2 offences recorded in 2026.
North Mymms 2026 Crime Scorecard
Top 5 Safest
Small Towns, Hertfordshire
29% lower, regional crime rate
East of England
39% lower, national crime rate
England, Wales & NI
Local Crime in Context
As of April 2026, the crime rate in North Mymms is 29% lower than the East of England and 39% lower than the England, Wales & Northern Ireland overall figure.
North Mymms Crime Rate Over Time
| North Mymms | |
| East of England | |
| England, Wales & NI |
North Mymms Crime Map
Incidents mapped in North Mymms represent the time frame between January 2016 and April 2026. Each point on the map represents an area where crimes have been recorded locally.
Use Crime Map
Hover over a point to see a breakdown of crime types recorded at that location. You can also filter by individual crime types, or use a combinations of offences to visualise the data you need.
See How North Mymms Compares
You can compare North Mymms's crime statistics against any other town, village, or city from across the country. Search for a location's name below to see how they stack up.
Introduction to North Mymms's crime statistics
This crime profile provides a detailed view of crime and safety around North Mymms up to April 2026, the most recent data release available. The crime figures and statistics have been calculated across each of North Mymms's 288 postcodes using three area sizes for comparison:
- Within a Five-Minute Walk
- Within a Ten-Minute Walk
- Within a Fifteen-Minute Walk
Individual crime risk scores and index figures are for the 12-month period ending April 2026 unless otherwise stated.
CrimeRate Insights
Looking into a specific address in North Mymms? CrimeRate Insights reports convert raw numbers into practical insight for any location, from single addresses and postcodes, up to major towns and cities.
Crime rates don’t happen by themselves; they follow people and patterns. Where crowds gather - near pubs and late-night venues, around the station, by supermarkets and forecourts - incidents naturally concentrate.
That doesn’t mean an area is "bad"; it usually means footfall is higher.
Your report explores these factors in a calm, non-judgemental way, putting the numbers in context and helping you spot what’s typical for places like this.
Crime Risk Scores
North Mymms • 12 Months Ending April 2026
The typical five-minute walk within North Mymms has a crime risk score of 456. This is based on analysis of 288 nearby areas within North Mymms, with "most" referring to roughly two thirds of the nearby locations.
Crime risk scores are on a scale of 1 to 1,000 and consider the severity of the crimes involved, as determined by sentencing guidelines. A score of 1 represents the lowest risk, and 1,000 the highest risk. This approach ensures that - unlike overall crime rate figures - bicycle theft is not given the same importance in North Mymms's risk scores as, for example, robbery, or violence & sexual offences.
Within a five-minute walk of the typical location in North Mymms, crime risk scores are typically around 456, while in Hertfordshire they are average 456.
Areas within a ten-minute walk typically see crime risk scores of 469 (472 for Hertfordshire), and scores within a fifteen-minute walk are most often around 510 (Hertfordshire 489).
Trends in Crime Risk
North Mymms
Calculated via Seasonal and Trend decomposition using Loess, the Seasonality Adjusted line represents the original data with seasonality subtracted, and the Trend line has been plotted unadjusted. Overall trend direction has been identified using the Mann-Kendall trend test, and rate calculated from the slope of the best-fit line identified from linear regression.
The 10-year trend indicates an increase of 34% in North Mymms's crime risk score. This is potentially a strong signal of how the crime risk is evolving. Cross-referencing with major cultural events and Covid's impact during this time is advised.
Looking at the previous five years, the trend in North Mymms's crime risk score is up by 14%. While potentially a good indicator of the overall risk trend, analysis may offer further insight when combined with the checks mentioned above.
Over the last year, North Mymms's crime risk score has shown an upward trend of approximately 4.5%, indicating that the risk profile is going up. This is an extremely short time period for crime trend analysis, and caution should be exercised when interpreting this figure.
Crime Rates and Indexes
North Mymms
The CrimeRate Index shows how crime rates compare against the national average.
1.0 equals the average
2.0 is double
3.0 triple
0.5 is half and
0.25 a quarter.
Highest Crime Rates
North Mymms • 12 Months Ending April 2026
Excluding other crime and other theft because their geographic location is often not relevant, anti-social behaviour as its definition is too wide, and bicycle theft for its specificity.
Possession of Weapons offences have a crime rate of 0.70 reports per 1,000 people in North Mymms, which is 1.63 times the national average. This figure is calculated from 7 crime reports logged by Hertfordshire Police during the 12-month period ending April 2026.
For the same period, Hertfordshire Police recorded 47 reports of Burglary in North Mymms, resulting in a crime rate of 4.60 reports per 1,000, and a CrimeRate Index of 1.47.
The crime rate for Robbery is 1.20 times the national average at 0.60 reports per 1,000. This is from 6 crime reports reported to Hertfordshire Police.
Most Significant 3-Year Increases in Crime Types
North Mymms
Excluding other crime and other theft, anti-social behaviour, and bicycle theft, and calculated with the same STL method described in Trends in Crime Risk, using CrimeRate Index figures to identify crime types that are trending above or below the national average, and the analysis timeframe limited to the last three years.
Drugs offences are trending upwards, though the CrimeRate Index three years ago is too low to measure, and the trend should be reviewed with caution.
Violence and Sexual Offences are trending upwards, and have a CrimeRate Index of 0.64 for the month of April 2026.
Three years ago, the monthly Violence and Sexual Offences CrimeRate Index was 0.47 times the national average, and the current trend indicates an increase of 36% over this timeframe.
Public Order offences are trending upwards, and have a CrimeRate Index of - for the month of April 2026.
Three years ago, the monthly Public Order CrimeRate Index was 0.16 times the national average, and the current trend indicates a near-complete decrease over this timeframe.
Most Significant 3-Year Decreases in Crime Types
North Mymms
Calculated with the same methodology as the largest increases section above.
Shoplifting offences are trending downwards, and have a CrimeRate Index of - for the month of April 2026.
Three years ago, the monthly Shoplifting CrimeRate Index was 0.20 times the national average, and the current trend indicates a near-complete decrease over this timeframe.
Crime Type Breakdown & Heat Map
North Mymms • 12 Months Ending April 2026
Size and colour reflect the CrimeRate Index figures for each type of crime.
North Mymms | Hertfordshire | East of England | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Crime Type | Count | Rate | Index | Count | Rate | Index | Count | Rate | Index |
| Anti-Social Behaviour | 131 | 12.87 | 0.91 | 21,601 | 15.50 | 1.10 | 74,182 | 10.23 | 0.72 |
| Bicycle Theft | 7 | 0.69 | 3.45 | 917 | 0.66 | 0.90 | 5,325 | 0.72 | 0.99 |
| Burglary | 47 | 4.60 | 1.47 | 3,683 | 2.65 | 0.85 | 17,593 | 2.42 | 0.77 |
| Criminal Damage and Arson | 53 | 5.20 | 0.91 | 6,931 | 4.97 | 0.79 | 40,107 | 5.51 | 0.88 |
| Drugs | 21 | 2.08 | 0.81 | 3,411 | 2.45 | 0.79 | 18,935 | 2.59 | 0.84 |
| Other Crime | 15 | 1.48 | 1.19 | 1,983 | 1.41 | 0.76 | 12,241 | 1.70 | 0.92 |
| Other Theft | 32 | 3.14 | 0.66 | 8,371 | 6.01 | 1.06 | 34,703 | 4.78 | 0.84 |
| Possession of Weapons | 7 | 0.70 | 1.63 | 861 | 0.62 | 0.73 | 5,931 | 0.83 | 0.98 |
| Public Order | 22 | 2.17 | 0.45 | 5,446 | 3.91 | 0.67 | 32,088 | 4.42 | 0.76 |
| Robbery | 6 | 0.60 | 1.20 | 991 | 0.70 | 0.59 | 4,492 | 0.61 | 0.52 |
| Shoplifting | 5 | 0.49 | 0.29 | 8,328 | 5.99 | 0.84 | 43,068 | 5.94 | 0.83 |
| Theft From the Person | 2 | 0.20 | 0.83 | 954 | 0.68 | 0.44 | 3,654 | 0.52 | 0.34 |
| Vehicle Crime | 45 | 4.40 | 1.02 | 6,049 | 4.35 | 1.01 | 27,821 | 3.84 | 0.89 |
| Violence and Sexual Offences | 186 | 18.23 | 0.60 | 36,109 | 25.93 | 0.85 | 200,684 | 27.65 | 0.91 |
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Total Crime by Year
North Mymms | Hertfordshire | East of England | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Year | Count | Rate | Index | Count | Rate | Index | Count | Rate | Index |
| 2026 | 448 | 43.98 | 0.73 | 84,034 | 60.33 | 0.84 | 446,642 | 61.53 | 0.85 |
| 2025 | 382 | 38.01 | 0.64 | 82,503 | 59.54 | 0.80 | 441,082 | 61.31 | 0.83 |
| 2024 | 363 | 36.30 | 0.58 | 73,907 | 53.85 | 0.71 | 443,460 | 62.34 | 0.83 |
| 2023 | 358 | 35.80 | 0.56 | 76,470 | 56.33 | 0.71 | 474,715 | 67.51 | 0.85 |
| 2022 | 370 | 37.32 | 0.57 | 74,426 | 55.22 | 0.72 | 471,617 | 67.78 | 0.88 |
| 2021 | 440 | 44.34 | 0.75 | 72,746 | 54.15 | 0.79 | 437,869 | 63.51 | 0.93 |
| 2020 | 401 | 40.50 | 0.64 | 82,388 | 61.55 | 0.83 | 465,376 | 67.88 | 0.92 |
| 2019 | 391 | 39.56 | 0.60 | 86,563 | 64.71 | 0.85 | 482,539 | 70.87 | 0.93 |
| 2018 | 399 | 40.51 | 0.67 | 84,008 | 63.06 | 0.89 | 439,882 | 64.91 | 0.91 |
| 2017 | 404 | 41.51 | 0.73 | 77,119 | 58.04 | 0.91 | 396,747 | 58.76 | 0.92 |
| 2016 | 106 | 10.97 | 0.67 | 21,894 | 16.50 | 0.87 | 116,493 | 17.30 | 0.91 |
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North Mymms Compared to Nearby Small Towns
12 Months Ending Apr 2026
| Small Town | Total Crimes | Crime Rate | Rate Difference |
|---|---|---|---|
| London Colney | 1,068 | 102.37 | 133% more dangerous |
| Waltham Cross | 1,254 | 98.09 | 123% more dangerous |
| Baldock | 683 | 62.64 | 42% more dangerous |
| Potters Bar | 1,792 | 69.26 | 57% more dangerous |
| St Stephen | 1,010 | 59.50 | 35% more dangerous |
| Watford Rural | 1,517 | 61.33 | 39% more dangerous |
| Sawbridgeworth | 502 | 48.33 | 10% more dangerous |
| Ware | 1,084 | 51.30 | 17% more dangerous |
| Aldenham | 523 | 48.20 | 10% more dangerous |
| North Mymms | 448 | 43.98 | - |
| Abbots Langley | 1,311 | 49.94 | 14% more dangerous |
| Sandridge | 547 | 42.04 | 4.4% safer |
| Berkhamsted | 826 | 39.63 | 10% safer |
| Royston | 793 | 39.52 | 10% safer |
| Tring | 535 | 37.77 | 14% safer |
| Welwyn | 320 | 33.28 | 24% safer |
| Chorleywood | 398 | 32.96 | 25% safer |
Comparing North Mymms to the UK's Major Cities
12 Months Ending Apr 2026
| City Name | Crime Rate | Rate Difference |
|---|---|---|
| North Mymms | 43.98 | - |
| Cardiff | 79.55 | 81% more dangerous |
| Newcastle upon Tyne | 82.69 | 88% more dangerous |
| Sheffield | 84.09 | 91% more dangerous |
| Leicester | 97.87 | 123% more dangerous |
| Bristol | 104.64 | 138% more dangerous |
| Birmingham | 105.05 | 139% more dangerous |
| Liverpool | 106.48 | 142% more dangerous |
| Leeds | 107.10 | 144% more dangerous |
| Nottingham | 107.74 | 145% more dangerous |
| Westminster | 125.00 | 184% more dangerous |
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Offences In and Around North Mymms's Parks & Leisure Spaces
Limited to spaces in North Mymms that are named and have had crimes recorded within their boundaries in the 12 months to Apr 2026.
| Name | ASB | Drugs | Public Order | Robbery | VSO | All Others |
|---|---|---|---|---|---|---|
| Angerland Common | 7 | 1 | 1 | - | 3 | 1 |
| Morven Park | 12 | 1 | - | - | 9 | 8 |
| Gobions Open Space | - | - | - | - | 3 | 2 |
| Gobions and Moffats Open Space | - | - | - | - | 1 | 1 |
| Little Heath Playing Field | - | - | - | - | 6 | 8 |
| North Mymms Recreation Ground | 13 | - | - | - | 11 | 13 |
Recent Crimes in North Mymms
The 20 most recent crime reports in North Mymms.
| Date | Crime Type | Location | Outcome |
|---|---|---|---|
| April 2026 | Anti-social behaviour | On or near Bushwood Close | |
| April 2026 | Anti-social behaviour | On or near Bushwood Close | |
| April 2026 | Anti-social behaviour | On or near Bushwood Close | |
| April 2026 | Anti-social behaviour | On or near Brookmans Avenue | |
| April 2026 | Bicycle theft | On or near Hawkshead Lane | |
| April 2026 | Bicycle theft | On or near Hawkshead Lane | |
| April 2026 | Bicycle theft | On or near Hawkshead Lane | |
| April 2026 | Criminal damage and arson | On or near Brookmans Avenue | |
| April 2026 | Criminal damage and arson | On or near Hawkshead Lane | |
| April 2026 | Criminal damage and arson | On or near Dixons Hill Road | |
| April 2026 | Other crime | On or near Rose Mead | |
| April 2026 | Other theft | On or near Hawkshead Lane | |
| April 2026 | Vehicle crime | On or near Speyhawk Place | |
| April 2026 | Violence and sexual offences | On or near Petrol Station | |
| April 2026 | Violence and sexual offences | On or near Heathfield Close | |
| April 2026 | Violence and sexual offences | On or near Frampton Road | |
| April 2026 | Violence and sexual offences | On or near Grove Place | |
| April 2026 | Violence and sexual offences | On or near Station Close | |
| April 2026 | Violence and sexual offences | On or near Wain Close | |
| April 2026 | Violence and sexual offences | On or near Grove Place |
Methodology & Data Sources
North Mymms Crime Report
Data Sources & Processing
Every month, CrimeRate processes crime reports from data.police.uk, the UK's official provider of open crime report data. Each crime report includes anonymised coordinates, most often "snapped" to the middle of the nearest street, or to the nearest major landmark. The reports also include the month and year the crime was reported, as well as the type of crime.
Data releases on data.police.uk happen once a month, with a two-month delay. This means that, for example, crimes reported in North Mymms during June 2026 will typically become available in August 2026. The latest release is for Apr 2026 and was released in Jun 2026. To provide current and historical crime statistics, CrimeRate processed 61,669,232 crime reports for the latest release.
North Mymms Data Points
For North Mymms, CrimeRate uses the geographic boundaries provided by The Office for National Statistics in the December 2023 release of their Parishes and Non Civil Parished Areas dataset, using the PARNCP23CD column value E04012223.
Due to the 2021 Census being conducted during a UK-wide Coronavirus lockdown, the daytime population figures released so far cannot be relied on for purposes such as comparing crime rates. Instead, CrimeRate uses North Mymms's daytime - or "workday" - population of 9,728 from the ONS 2011 Census for calculations throughout the site.
All geographic boundaries use the full resolution - extent of the realm versions where provided to avoid missing crime reports near coastlines and rivers - the banks of the Thames in particular - that would otherwise not be included when using the clipped to the coastline datasets.
Calculating Crime Rates
CrimeRate locates the UK region, county, and town/city/village locality for each crime report, and calculates the crime rate by taking the sum of all crime reports, dividing it by the locality's daytime / "workday" population, and multiplying the result by 1,000 to get the crime rate per 1,000.
Crime Risk Score Calculations
CrimeRate calculates crime counts for local, nearby, and wider areas for every postcode in England, Wales, and Northern Ireland. The postcodes locations are deduplicated by a process that ensures distinct points are approximately 50 metres apart. This process removes the bias that would otherwise come from counting the same crimes several times in heavily populated areas.
Using a custom algorithm developed in-house, CrimeRate applies a crime severity weighting to each area's crime counts, based on the type of crime reported. This increases or decreases the crime count, or zeroes it out entirely, depending on the crime type. A separate crime severity rate is then calculated, standardised, and scaled to fit the crime risk score range of 1 to 1,000, with 1 being the lowest score, and 1,000 the highest.
Crime risk scores undergo further analysis per town, city, and village plus other areas including police forces and neighbourhoods. CrimeRate uses percentiles to work out the most common range of crime risk scores in each locality. This includes identifying the high and low bounds where approximately 68% of scores fall, and finding the median (50th percentile) for easy reference.
The crime types with a weight of zero are: Anti-Social Behaviour; Bicycle Theft; Other Crime; Other Theft; and Shoplifting. The highest weights to are assigned to Violence & Sexual Offences, and the lowest to Vehicle Crime.
Frequently Asked Questions
Crime in North Mymms