Sunken Marsh on the map

Location in EssexSunken Marsh sits where the marker shows within the county.

38,323
Population
15,871
Households
4 / 10
Deprivation decile
Around average
12
Schools nearby
£48,039
Avg. household income
1,180
Businesses
2,141
People per km²
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About Sunken Marsh

Sunken Marsh is located in Essex, England, within the SS8 postcode area. This area is characterised by its unique wetland ecosystem, which is home to a variety of wildlife, including numerous bird species. The marshland provides an important habitat for both flora and fauna, making it a significant site for nature enthusiasts and birdwatchers.

Visitors to Sunken Marsh can enjoy walking along designated paths that allow for easy exploration of the landscape. The area is also popular for photography, particularly during the changing seasons when the scenery transforms. Facilities nearby include parking and information boards that provide insights into the local environment, ensuring a pleasant visit for those looking to learn more about this ecological site.

School Ratings in Sunken Marsh

Sunken Marsh is served by 96 schools. A further 7 schools hold a Good rating.

House Prices in Sunken Marsh

Property prices average £308K across the area, and detached homes are the most common property type, typically selling for £334K.

Crime and Anti-Social Behaviour in Sunken Marsh

Local crime rates sit broadly in line with national averages. Anti-social behaviour accounts for the highest share in Sunken Marsh, with 66 incidents logged in April 2026.

Deprivation and Employment in Sunken Marsh

Based on the 2025 Index of Multiple Deprivation, Sunken Marsh falls within the mid-range nationally for overall deprivation. Working-age employment is around the national average for the area. Income levels locally sit close to the national average.

Healthcare in Sunken Marsh

There are 24 GP surgeries within three miles of Sunken Marsh, the nearest being Oaklands Surgery (0.8 miles away).

Property Prices 4,837 sales

Average Price £308K
£500 , £11.92M
Detached £334K 2,342
Semi £291K 1,553
Terraced £265K 560
Flat £186K 243

Household Income in Sunken Marsh ONS 2023

The average total household income in Sunken Marsh is approximately £48,039 a year before tax, 13% below the national average of £55,302. After tax and benefits, the average disposable (net) household income is around £36,137. These are modelled estimates from the Office for National Statistics for the financial year ending 2023.

Sunken Marsh £48,039
England & Wales avg. £55,302

Net (after tax) household income averages £36,137.

Businesses in Sunken Marsh ONS 2025

There are approximately 1,180 active businesses based in Sunken Marsh, around 31 for every 1,000 residents. The local economy is dominated by small firms: about 91% are micro-businesses employing fewer than 10 people, while 10 are larger employers with 50 or more staff. Figures are from the Office for National Statistics UK Business Counts.

1,180 Total businesses
31 Per 1,000 residents
Micro, 0-9 91%
Small, 10-49 8%
Medium, 50-249 1%
Large, 250+ 0%

Deprivation and Employment in Sunken Marsh IMD 2025

The 2025 Index of Multiple Deprivation places Sunken Marsh in the mid-range nationally. Employment and income levels are close to the England average, with a mix of opportunities across sectors. Overall living conditions are comparable to similar areas across the country.

Overall Deprivation
4/10
Income
4/10
Employment
4/10
Education
2/10
Health
4/10
Housing
4/10
Living Environment
6/10
Children 0-15 17%
Working age 57%
Older 65+ 26%
6,622 Children (0-15) 17%
21,926 Working Age 57%
9,780 Older (65+) 26%
Average Child Poverty (IDACI) 41.9% of children in income-deprived families
Average Older Person Poverty (IDAOPI) 17.7% of over-60s in income-deprived households
Data from English Indices of Deprivation 2025 · Contains public sector information licensed under the Open Government Licence v3.0

Crime in Sunken Marsh 288 crimes · April 2026

Average Crime Area

Sunken Marsh experiences crime rates that are roughly comparable to the national picture. Violence & sexual offences is the most reported category, consistent with broader patterns across similar communities. Day-to-day life here reflects the usual mix of challenges found in any established town.

Violence & Sexual Offences 114
Anti-Social Behaviour 66
Criminal Damage & Arson 33
Other Theft 14
Public Order 12
Shoplifting 12
Burglary 8
Drugs 7
Other Crime 7
Bicycle Theft 5
Robbery 5
Vehicle Crime 4
Weapons 1
Local Policing
Data from data.police.uk · Contains public sector information licensed under the Open Government Licence v3.0
Crime figures depend on reporting by individual police forces and may not reflect the full picture in all areas.

Nearest Train Stations 6 stations

Leigh-On-Sea Train Station 1.8 miles
Benfleet Train Station 1.9 miles
Chalkwell Train Station 3.1 miles
Westcliff Train Station 3.9 miles
Rayleigh Train Station 4.1 miles
Pitsea Train Station 4.6 miles

Location

Local Government

District Castle Point
County Essex
Ward Canvey Island South
Constituency Castle Point
Parish Canvey Island
Region East of England

Home Ownership in Sunken Marsh

Of the 16,170 households in and around Sunken Marsh, 76% are owned, 8% are socially rented and 17% are privately rented. Home ownership here is higher than the England and Wales average of 63%.

Owned 76% Social rented 8% Private rented 17%

Tenure from the 2021 Census (ONS), for the postcode districts covering Sunken Marsh.

Frequently Asked Questions about Sunken Marsh

What is the population of Sunken Marsh?
Sunken Marsh has a population of approximately 38,323 residents, based on the latest census figures for the surrounding postcode area.
What is the average house price in Sunken Marsh?
The average property in and around Sunken Marsh sold for about £307,949, based on HM Land Registry Price Paid records. That is around 12% below the England and Wales average of £349,091.
Is Sunken Marsh a deprived area?
Sunken Marsh sits around the national average for deprivation, with an Index of Multiple Deprivation decile of 4 out of 10, where 1 is the most deprived and 10 the least deprived.
What postcodes cover Sunken Marsh?
Sunken Marsh is covered by the SS8 postcode district.
How many schools are there in Sunken Marsh?
There are 12 schools within easy reach of Sunken Marsh, spanning primary, secondary and other phases.
Where is the nearest train station to Sunken Marsh?
The nearest railway station to Sunken Marsh is Leigh-On-Sea Train Station, about 1.8 miles away.