Crime in CM99 1

The CM99 1 postcode sector, in the CM (Chelmsford) postcode area, with most records published by Essex Police.

Updated October 2026.

Police published 19 street-crime records for CM99 1 from January 2025 to August 2026. At least one month between January 2025 and August 2026 is missing from the published records. Police locations are approximate.

Explore the crime map

Last 12 published months

January 2025 to August 2026. Street-crime records include anti-social behaviour.

Street-crime records

Share of CM99

100.0%

Year-on-year

n/a

CM99 1 holds 100.0% of the 19 records assigned to CM99 in the same window.

Month-by-month totals

Month	Street-crime records
January 2025	1
April 2025	2
June 2025	4
July 2025	1
August 2025	1
December 2025	1
February 2026	1
March 2026	1
April 2026	4
May 2026	1
July 2026	1
August 2026	1

Street-crime records per 1,000 residents

At least one month is missing from the last 12 months of published records here, so no rate is shown for a full year.

Rates cover England and Wales only. Residents: Office for National Statistics, Census 2021 postcode estimates, Open Government Licence v3.0. How rates are built.

Year by year

Calendar-year totals for CM99 1 (January 2014 to August 2026).

Year	Street-crime records
2021	13
2022	2
2023	11
2024	7
2025	10
2026 (part year)	9

Limits to keep in mind

Published locations are approximate; they are snapped to anonymous map points before release, and each record is assigned to a sector by its nearest postcode. A sector is small, so counts near its edges are indicative.
These are counts of published police records, not all crime, and not a safety score.
Fewer than 50 records were published here in the last 12 months, so month-to-month changes are mostly noise.
Full detail is on the methodology page and in what a postcode district crime page shows, which covers sectors too.

Browse postcode districts · Crime across Essex

Highest and lowest published crime rates by postcode district in Essex

Cite this page

This page updates as new months are published, so a citation needs the months shown and the date you read it. One click selects the whole citation.

CrimeMapsUK. CM99 1 postcode sector: published street-crime records, 12 published months between January 2025 and August 2026, with at least one month in between missing. Source: data.police.uk, Open Government Licence v3.0. Retrieved 31 October 2026. Police locations are approximate; records are assigned to the area by nearest postcode. Postcode centroids from the ONS Postcode Directory. Source: Office for National Statistics licensed under the Open Government Licence v3.0. Contains OS data © Crown copyright and database right 2026. Contains Royal Mail data © Royal Mail copyright and database right 2026. https://crimemapsuk.com/crime/sectors/cm99-1/