Housing data for Swansea, IL

Swansea, IL has an estimated 14,710 residents and 6,175 homes (US Census Bureau, 2020–2024 American Community Survey).

It is a village in St. Clair County.

26.6% of households rent.

The median gross rent is $1,137 a month.

Its population grew measurably since 2015–2019 (+6.2%).

Figures last updated on .

Residents
14,710 (±530)
Housing units
6,175 (±402)
Households that rent
26.6%
Median gross rent
$1,137
Residents since 2015–2019
+6.2%

What stands out in Swansea

Median real estate taxes: $4,759 (±$266) in Swansea, higher than in St. Clair County ($3,665).

Homes built before 1980: 32.5% (±5.1 points) in Swansea, lower than in St. Clair County (54.9%).

Median home value: $223,600 (±$21,022) in Swansea, higher than in St. Clair County ($180,300).

Median household income: $91,587 (±$13,281) in Swansea, higher than in St. Clair County ($73,854).

Housing in Swansea at a glance

Swansea against St. Clair County, its state and the nation

Estimate (90% margin of error)
SwanseaSt. Clair CountyIllinoisUnited States
Residents14,710 (±530)253,694 (exact)12,694,798 (exact)334,922,499
Housing units6,175 (±402)115,630 (±82)5,457,452 (±471)143,775,355
Households that rent26.6% (±4.6 points)31.6% (±1.2 points)32.9% (±0.2 points)34.8%
Median gross rent$1,137 (±$85)$1,090 (±$22)$1,274 (±$5)$1,413
Median household income$91,587 (±$13,281)$73,854 (±$1,990)$83,390 (±$362)$80,734
Median home value$223,600 (±$21,022)$180,300 (±$5,056)$263,300 (±$797)$332,700
Median real estate taxes (a year)$4,759 (±$266)$3,665 (±$90)$5,298 (±$22)$3,119
Built before 198032.5% (±5.1 points)54.9% (±1.8 points)63.4% (±0.2 points)49.7%
Average commute24.1 minutes (±2.5)24.0 minutes (±0.6)27.8 minutes (±0.1)26.4 minutes
Households with broadband94.0% (±2.7 points)89.7% (±0.9 points)90.8% (±0.1 points)91.0%
Median age of residents42.3 years (±2.6)39.9 years (±0.3)39.0 years (±0.1)38.9 years

Swansea covers 6.5 square miles of land, about 2,269 residents per square mile (Census Bureau Gazetteer).

How Swansea has changed since 2015–2019

2015–2019 and 2020–2024 American Community Survey 5-year estimates
2015–20192020–2024Amount of changeVerdict
Residents13,851 (±262)14,710 (±530)+6.2%Measurable increase
Housing units6,001 (±326)6,175 (±402)+2.9%Not a measurable change
Median gross rent$1,062 (±$90)$1,137 (±$85)+7.1%Down after inflation
Median home value$167,000 (±$6,995)$223,600 (±$21,022)+33.9%No measurable change after inflation
Median household income$77,517 (±$8,313)$91,587 (±$13,281)+18.2%No measurable change after inflation
Median owner cost with a mortgage$1,551 (±$110)$1,872 (±$94)+20.7%No measurable change after inflation
Median real estate taxes$3,686 (±$240)$4,759 (±$266)+29.1%No measurable change after inflation
Households that rent26.3% (±3.5 points)26.6% (±4.6 points)+0.3 percentage pointsNot a measurable change
Rental vacancy rate14.4% (±7.6 points)9.9% (±7.8 points)−4.5 percentage pointsNot a measurable change

The Census Bureau publishes 2015–2019 dollars in 2019 dollars and 2020–2024 dollars in 2024 dollars.

Prices (the CPI-U, US Bureau of Labor Statistics) rose 22.7% between 2019 and 2024, so a dollar figure’s verdict compares the two after raising the earlier one by that much, using the Census Bureau’s test for a difference.

The two periods do not overlap, as the Census Bureau recommends for 5-year estimates.

Crime reported to police in Swansea

In 2025, the Swansea Police Department reported 69 violent and 684 property crimes per 100,000 residents to the FBI.

ZIP codes in Swansea

ZIP Code Tabulation Areas that cover this place (2020–2024 estimates)
ZIP codeShare of the ZIP’s land in this placeResidentsMedian gross rentMedian home valueMedian household income
6222643%28,255$1,008$167,000$70,797

A ZIP code is a mail route rather than a boundary, so the Census Bureau publishes figures for ZIP Code Tabulation Areas built from census blocks; the share column says how much of each one’s land lies in this place.

Places near Swansea

Nearest places with Census figures, by straight-line distance
PlaceDistanceMedian gross rentMedian home valueHouseholds that rent
St. Clair Township1.3 mi$1,120$202,00029.8%
Belleville2.5 mi$1,019$141,30039.9%
Fairview Heights3.2 mi$1,174$177,70030.4%
Shiloh4.0 mi$1,187$274,00036.8%
Caseyville Township4.8 mi$1,280$203,70031.1%
O'Fallon5.1 mi$1,332$295,70029.8%
Caseyville5.9 mi$1,122$96,80030.0%
Stookey Township6.0 mi$985$173,80018.1%

Places in Illinois most like Swansea

PlaceMedian gross rentMedian home valueMedian household incomeHouseholds that rent
O'Fallon Township$1,153$280,700$100,13625.8%
St. Clair Township$1,120$202,000$80,30929.8%
Glen Carbon$1,097$282,000$97,16830.8%
Sycamore$1,140$265,700$84,12028.4%
Woodstock$1,212$245,700$82,75828.2%
Chatham$1,256$243,200$106,77319.4%

Matched on rent, home value, income, the share who rent, the age of the homes, the share in apartment buildings and the commute, each measured against the spread across Illinois.

HUD Fair Market Rent for Swansea, fiscal year 2027

St. Louis, MO-IL HUD Metro FMR Area, dollars a month
Studio1 bedroom2 bedrooms3 bedrooms4 bedrooms
$1,064$1,104$1,349$1,731$1,997

HUD also publishes a Small Area Fair Market Rent for each ZIP code in the area; the Fair Market Rent page for this place lists its ZIP codes.

HUD income limits for Swansea, fiscal year 2026

St. Louis, MO-IL HUD Metro FMR Area, annual household income
Household sizeExtremely low (30%)Very low (50%)Low (80%)
1 person$23,850$39,750$63,600
2 people$27,250$45,400$72,650
3 people$30,650$51,100$81,750
4 people$34,050$56,750$90,800
5 people$38,680$61,300$98,100
6 people$44,360$65,850$105,350
7 people$50,040$70,400$112,600
8 people$55,720$74,950$119,900

These are the limits HUD sets for its housing programs in the St. Louis, MO-IL HUD Metro FMR Area, where HUD’s median family income for fiscal year 2026 is $113,500.

A program can use its own limits; tax-credit and local programs often do.

Survey years: 2020–2024 (American Community Survey 5-year estimates), compared with 2015–2019.

Margins of error are at the 90% confidence level.

What you can do on Seayora in Swansea

One account for renting, owning, managing and fixing homes, with these figures beside you.

Own or manage a rental?

List it, sign the lease and collect rent online, with the figures for Swansea beside you.

Create a landlord account · See what landlords get

Looking for a place to rent?

Browse homes for rent near Swansea, save the ones you like and apply online.

Browse rentals · Create a renter account

Do repairs, renovations or maintenance?

Get found by owners and renters near Swansea, and send estimates and invoices from your phone.

Join as a pro · Find a pro

Questions about Swansea

What is the average rent in Swansea, IL?

The Census Bureau publishes the median rather than the average: the median gross rent in Swansea is $1,137 (±$85) a month (2020–2024 American Community Survey), so half of renting households pay less and half pay more.

How much is a one-bedroom apartment in Swansea?

The median gross rent for a one-bedroom home in Swansea, IL is $978 (±$164) a month (2020–2024 American Community Survey).

Are renters in Swansea rent-burdened?

37.7% of renting households in Swansea pay 30% or more of their income in gross rent, the share housing researchers usually call rent-burdened (2020–2024 American Community Survey).

How many renters are there in Swansea?

Swansea has an estimated 1,534 (±321) renting households, 26.6% of its occupied homes (2020–2024 American Community Survey).

What is the median household income in Swansea?

The median household income in Swansea is $91,587 (±$13,281) a year (2020–2024 American Community Survey).

What is the average home value in Swansea, IL?

The Census Bureau publishes the median: $223,600 (±$21,022) for owner-occupied homes in Swansea (2020–2024 American Community Survey).

Is Swansea growing?

In Swansea, the number of residents went from 13,851 in 2015–2019 to 14,710 in 2020–2024 (+6.2%), a measurable increase.

What ZIP codes are in Swansea?

The ZIP code that covers Swansea is 62226.

What is the median rent in ZIP code 62226?

The median gross rent in ZIP Code Tabulation Area 62226 is $1,008 (±$65) a month (2020–2024 American Community Survey).

Sources

To check these figures in the Census Bureau’s own API, request the variables below from the 2024 ACS 5-year data profile (acs/acs5/profile) for Swansea village, Illinois (place:74119, in state:17).

Each estimate (E or PE) has a margin of error beside it (M or PM).

The 2015–2019 figures are B01003_001E, B01003_001M, B25064_001E, B25064_001M from the 2019 release.

The API needs a free key.

Request a Census API key.

DP05_0001E, DP05_0001M, DP04_0001E, DP04_0001M, DP04_0047PE, DP04_0047PM, DP04_0134E, DP04_0134M, DP03_0062E, DP03_0062M, DP04_0089E, DP04_0089M

This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.

Figures are published by the US Census Bureau, HUD, the Bureau of Labor Statistics and the FBI; Seayora reproduces them and does not adjust them, except where a sentence says it compares dollar figures after inflation. They describe the whole place, not any one building or street, and are not an appraisal, a rent determination, a tax bill, a safety rating or legal advice.

Figures last updated on .

Related