CO1 1DZ

POSTCODE

CO1 1DZ is a postcode in Castle.

Small user postcodeQuality indicator 1 (highest positional precision)Updated 2026-08-01
Coordinates
51.8911, 0.8967
OS grid TL994253 (599,423, 225,355)
IMD England
3/10
#8713
Crime · Aug '26
Among the highest · 31.9 per 1k
MoM -5% vs Jul '26
Plus Code
9F32VVRW+CM
Most deprived 20–30%
IMD England
Among the highest · 31.9 per 1k
Crime · Aug '26
East of England
Region
Most deprived 20–30%
IMD England
Among the highest · 31.9 per 1k
Crime · Aug '26
East of England
Region

Deprivation Index (IMD)

IMD England — Index of Multiple Deprivation
Measures deprivation across income, employment, health, education, crime, housing, barriers to housing and services, and living environment.
8713
Rank out of 33,755 LSOAs in England
1 - Most deprived10 - Least deprived
Rank 8713 out of 33,755 lower layer super output areas in England. N/A for Wales, Scotland and Northern Ireland as this postcode is in England.

Property sales (Land Registry)

England & Wales
See sold prices in CO1

Police Recorded Crime near CO1 1DZ

England & Wales
Crime trends · near CO1 1DZ

Counts are for Castle electoral ward, not a 1-mile police.uk street search around this postcode.

data.police.uk · YoY vs same month last year · per 1,000 residents (Census 2021)Sep '24 – Aug '26
Key categories · YoY
Violent Crime
139
YoY +532%
1699112
Sep '24Mar '25Sep '25Mar '26Aug '26
ASB
51
YoY —
51272
Sep '24Mar '25Sep '25Mar '26Aug '26
Vehicle Crime
8
YoY —
1160
Sep '24Mar '25Sep '25Mar '26Aug '26
Burglary
5
YoY —
950
Sep '24Mar '25Sep '25Mar '26Aug '26
Criminal damage
23
YoY —
23120
Sep '24Mar '25Sep '25Mar '26Aug '26
Other recorded crime
88
YoY +418%
98537
Sep '24Mar '25Sep '25Mar '26Aug '26
Notable spike detected in secondary categories
Shoplifting
47
YoY —
55280
Sep '24Mar '25Sep '25Mar '26Aug '26

0 of 6 key categories improving · violent crime rising

361
incidents · Aug '26

Demographics (LSOA 2021 context)

Ethnicity

Total residents: 1,117
White Brit.58.8%
Other White19.8%
African3.4%
Other Asian2.7%
Chinese2.3%
+ 6 other groups · 13.1%

Religion

Total residents: 1,117
No religion44.4%
Christian41.0%
Not answered6.7%
Muslim4.9%
Hindu1.4%
+ other · 1.6%

Age groups

Total residents: 1,119
25–3428.3%
35–4920.5%
50–6412.7%
20–2412.6%
65–746.7%
+ 6 other age groups · 19.2%

Households

Total households: 682
One person: other47.5%
One person: aged 66+12.6%
Cohabiting couple family: No children12.5%
Married or civil partnership couple: No children5.9%
Other household types, including all full-time students and all aged 66 years and over5.4%
+ 9 other households · 16.1%

Getting around

Straight-line distance from this postcode. Walking time is approximate.

Stations

  • Colchester City Rail Station

    Rail · entrance

    740 m straight lineabout 9 min
  • Colchester Town Rail Station

    Rail

    755 m straight lineabout 9 min
  • Colchester Rail Station

    Rail · south entrance

    1.0 km straight lineabout 13 min

Bus stops

  • High Street

    Bus · Stop Fa · east

    154 m straight lineabout 2 min
  • High Street

    Bus · Stop Fb · east

    155 m straight lineabout 2 min
  • High Street

    Bus · Stop Fc · east

    156 m straight lineabout 2 min
  • High Street

    Bus · Stop Fd · east

    194 m straight lineabout 2 min
  • Middleborough

    Bus · Park and Ride · north

    205 m straight lineabout 3 min

Coordinates & Location for CO1 1DZ

England
Country
Colchester
Local Authority
Essex
Castle
Ward
Colchester
Travel to Work
TTWA
Postcode
CO1 1DZ
Coordinates
51.8911, 0.8967
Grid reference
TL994253
Easting
599,423
Northing
225,355
Region
East of England
Plus Code
9F32VVRW+CM
User Type
Small user postcode
Grid Quality
Quality indicator 1 (highest positional precision)
Built Up Area
Colchester
Travel to Work
Colchester
ITL Region
Colchester
National Park
Non-National Park

Administrative Information

Colchester
Local Authority
Council Area
Colchester E14001176
Constituency
E14001176
Essex
Police Force
England
Ward
Castle
Constituency code
E14001176
EU Electoral Region
Eastern
Parish
Colchester, unparished area
International Territorial Level
Colchester

Health & NHS

East of England
Health Authority
Serving Essex
NHS England
East of England
Cancer Alliance
National
Health Authority
East of England
NHS Region
East of England
Integrated Care Board
NHS Essex Integrated Care Board
Primary Care Org
North East Essex
Sub ICB Location
NHS Essex ICB - 06T
Cancer Alliance
East of England

Statistical Areas

LSOA 2021
Super Output Area
Colchester 007G E01035158
E01035158
MSOA 2021
Mid Super Output
Colchester 007 E02004512
E02004512
LSOA 2011
Super Output Area
Colchester 007D E01021649
E01021649
MSOA 2011
Mid Super Output
Colchester 007 E02004512
E02004512
Urban: Nearer to a major town or city
Rural/Urban Classification 2021
2001 Classification
(England/Wales) Urban ≥ 10k – less sparse: OA falls within urban settlements with a population of 10,000 or more and the wider surrounding area is less sparsely populated 5
2011 Classification
(England/Wales) Urban city and town C1
2021 Classification
Urban: Nearer to a major town or city UN1

Sun & Time Information

7:20 AM6:03 PM
7:20 AM
Sunrise
6:03 PM
Sunset
10 hours 43 minutes of daylight today
Sunrise (today)
7:20 AM
Sunset (today)
6:03 PM
Daylight duration
10 hours 43 minutes
Time zone
GMT / BST (UTC +0 / +1)

Postcode History

January 1980
First Introduced
Active from
Not terminated
Usage Ended
Terminated
~46 years
Active Duration
1980 -> Present
January 1980 — Introduced
Postcode CO1 1DZ introduced by Royal Mail.
2001 — Census Classification
2001 Rural/Urban Classification: (England/Wales) Urban ≥ 10k – less sparse: OA falls within urban settlements with a population of 10,000 or more and the wider surrounding area is less sparsely populated 5
2011 — Reclassified
2011 Rural/Urban Classification: (England/Wales) Urban city and town C1.
2021 — Census Update
2021 Census classification: Urban: Nearer to a major town or city UN1. LSOA E01035158 and MSOA E02004512 assigned.
2025 — Indices of Deprivation
IMD England rank: 8713
Present — Active
Postcode CO1 1DZ is currently active and in use.
First introduced
January 1980
Usage ended
Not terminated
Active duration
~46 years
Last updated
2026-08-01
Current status
Live

School applications

We've matched the postcode to Essex.

You apply through this education local authority even if the school is in another council area.

Colchester is the district council. School applications go through Essex.

Last published allocation

None of the schools listed here has a published last-distance figure, so we cannot compare a postcode with last year's allocation. We do not draw catchment maps in this list; where we hold a council's map, it is on the school's page.

Apply for a primary place via Essex

GOV.UK is the official apply and admissions handoff. We do not link a generic council homepage. Per-LA composite prospectus URLs are not in the API yet.

Spot a mistake on this page? Email [email protected] and we'll check it against the source.

Explore the full Colchester
See local data, transport links, deprivation trends and more for the broader area — all in one place.