City safety & data profile
SwanseaIL
Swansea, IL is a 14K-resident city in St. Clair County with a median household income of $91,587.
St. Clair County, Illinois. Federal health, economic, and safety indicators for Swansea, drawn from the U.S. Census Bureau American Community Survey, CDC PLACES, and CMS Hospital Compare. Swansea has a population larger than 21% of the 4,640 U.S. cities Areazine tracks, and a median home value of $223,600.
Data updated 2026-09-04
- 14K
- Population (place)
- Bottom 22%
- By size
- $91,587
- Median income (place)
- $223,600
- Median home (place)
- 8.7%
- Poverty rate (place)
The read on Swansea
Swansea posts a median household income higher than 62% of U.S. cities Areazine tracks.
- Top 38%
- by median income, US cities
Where Swansea income ranks nationally
Median household income vs. every place Areazine profiles (place-level ACS)
$91,587 Top 38% higher than 62% of 3,889 places Areazine profiles
Each bar is a $20K-wide band; taller bars hold more places Areazine profiles. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
Source U.S. Census Bureau, American Community Survey (place-level) · 2024 ACS 5-year
Largest cities in IL
Population among 222 IL places with 10,000+ residents and ACS income on Areazine. Tooltip shows the income rank in the same pool.
- Chicago
Chicago, IL
2,664,452 residents
- Aurora 200,661
Aurora, IL
200,661 residents
- Rockford 148,278
Rockford, IL
148,278 residents
- Joliet 147,861
Joliet, IL
147,861 residents
- Naperville 147,100
Naperville, IL
147,100 residents
- Peoria 115,070
Peoria, IL
115,070 residents
- Springfield 114,394
Springfield, IL
114,394 residents
- Elgin 112,111
Elgin, IL
112,111 residents
- Waukegan 88,475
Waukegan, IL
88,475 residents
- Champaign 86,096
Champaign, IL
86,096 residents
What this shows Chicago is the largest IL city on this list; Hinsdale leads median income.
Highest median incomes in IL
Median household income among the same 222-city pool. Tooltip shows the population rank.
- Hinsdale
Hinsdale, IL
$250,001 median
- Winnetka
Winnetka, IL
$250,001 median
- Lake Forest
Lake Forest, IL
$235,081 median
- Western Spri…
Western Springs, IL
$230,255 median
- Wilmette
Wilmette, IL
$190,662 median
- Deerfield
Deerfield, IL
$181,660 median
- Highland Park
Highland Park, IL
$168,094 median
- Libertyville
Libertyville, IL
$165,667 median
- La Grange
La Grange, IL
$159,929 median
- Northbrook
Northbrook, IL
$157,782 median
What this shows Hinsdale posts the highest place-level median income in IL; Chicago is largest by headcount.
The quick read
Reading Swansea, IL beyond the headline numbers
Swansea sits inside St. Clair County, Illinois, at roughly 38.53°N, -89.99°W. Population 13,543, $91,587 median household income. Median home value $223,600, median rent $1,137. Poverty rate 8.7%, read against that income figure since two cities on the same median can differ underneath it.
At 8.7%, poverty in Swansea, IL runs below the midpoint of reporting cities -- enough to matter locally, not enough to dominate the city's profile.
Housing is inexpensive against local pay -- the median home in Swansea runs about 2.4 years of median household income, in the cheapest quarter of reporting cities.
15.2% of Swansea workers are remote, above the midpoint of reporting cities.
Among the CDC measures on this page, high blood pressure departs furthest from its peer median: 37.9% in Swansea, the highest-prevalence quarter of the 3,759 cities reporting that measure.
At 42.3 years, Swansea's median age is in the oldest quarter of reporting cities.
Sources: U.S. Census ACS, CDC PLACES, CMS Hospital Compare, plus live alerts for Swansea from FEMA, NOAA, FDA, and CPSC. Economic comparison bars use the unweighted average across tracked Census places with a reported value, not a household-weighted national median.
10-Year Trends 2013–2024
County-level trend (St. Clair County): Swansea's own historical series isn't separately published by the Census Bureau, so these year-over-year figures track the surrounding county, not the city alone.
Economics
| Indicator | Value |
|---|---|
| Median Rent | |
| Poverty Rate | 8.7% -30% vs avg |
| Unemployment | 5.6% |
| Bachelor's Degree+ | 42.5% |
| Work From Home | 15.2% |
| Public Transit | 0.7% |
Population
Health Profile 15 measures
Health Indicators
Preventive Care
Other Measures
What alerts and safety updates affect Swansea?
No area-tagged alerts are on record for Swansea right now. New federal and counterpart-agency notices still land in the site feed as agencies publish them.
City alert dispatch desk
Sheet IL-SWANSEA-IL · Swansea
Swansea: 4 tagged alerts; lead category NSW RFS bushfire alert.
- VOL-LIGHT 4 on record
- MIX-LED 100% au-bushfires
- DESK-IDLE Awaiting feed
- PHOTO-FINISH ≈ Las Vegas
Tagged alert mix: Swansea
Published notices carrying this city slug or location tag
- Bushfire Alerts
Bushfire Alerts
4
What this shows 4 tagged notices on record for Swansea.
Nearest tagged-volume peer: Las Vegas, NV (4 tagged · Δ0)
Counts reflect published articles tagged to Swansea; untagged NOAA county warnings may still appear in the site feed. Browse Illinois state hubs · Methodology
Cities with a similar tagged alert volume 4
Nearest published-notice counts on Areazine (4 tagged here), a feed-density peer set, not an ACS demographic match.
Read with this city profile
Frequently Asked Questions 5
What is the population of Swansea, IL? ▼
What is the median household income in Swansea? ▼
What is the median home value in Swansea? ▼
What are the top health concerns in Swansea? ▼
What is the median age in Swansea? ▼
Nationwide cities with similar poverty or income 8
Two ACS-derived peer sets for Swansea, both outside Illinois so the neighborhoods are not the geographic nearby list below.
Similar poverty rate
Nearest place-level ACS poverty rates outside IL (8.7% here).
Similar median income
Nearest place-level ACS median household incomes outside IL ($91,587 here).
Compare Swansea with another city
Pick a second U.S. city to open a side-by-side profile on population, income, health, and hospitals, the same federal datasets as this page.
Nearby Cities 8
Using Swansea's profile
Use this as a starting research checklist, not a verdict on whether to live here.
- Check live recalls, weather and hazard alerts scoped to the Swansea area before relying on national headlines. Check your area
- Read the poverty rate alongside the income figure, two places with the same median can have very different realities.
- Compare Swansea against Illinois peers on any ranking lens. Explore Illinois
Population and economics (income, home value, poverty, education) are place-level U.S. Census ACS; health is CDC PLACES; hospital counts reflect facilities in and around the city. County-level trends are labeled when shown.
Data Sources
All data on this page comes from official U.S. government sources. Population and economic data from the Census Bureau American Community Survey (2024 5-year estimates, place geography). Health data from the CDC PLACES program (2023). Hospital ratings from CMS Hospital Compare (2024). Climate data from NOAA. Education data from NCES. Cost of living from Bureau of Economic Analysis. Crime statistics, where referenced on Areazine, originate from the FBI Crime Data Explorer. Housing market figures referenced on Areazine come from HUD Fair Market Rents. Census economics and population are at place geography; some health and hospital indicators are reported at the county level (St. Clair County) where that is the smallest published unit.
Every figure on Areazine is published directly from official U.S. government sources, no number is typed in by an editor. City demographic and health figures are compiled directly from U.S. Census (place-level ACS), CDC, and CMS releases, updated quarterly within 30 days of upstream release. County-level trends are labeled when shown. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 2026.