Swansea, IL Profile: Facts & Data

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Swansea, Illinois - Basic Facts

The Village of Swansea had a population of 14,340 as of July 1, 2023. Swansea ranks in the upper quartile for Population Density and Diversity Index when compared to the other cities, towns and Census Designated Places (CDPs) in Illinois. See peer rankings below.

The primary coordinate point for Swansea is located at latitude 38.5339 and longitude -89.989 in St. Clair County. The formal boundaries for the Village of Swansea encompass a land area of 6.29 sq. miles and a water area of 0.15 sq. miles. St. Clair County is in the Central time zone (GMT -6).

The Village of Swansea has a C1 Census Class Code which indicates an active incorporated place that does not serve as a county subdivision equivalent. It also has a Functional Status Code of "A" which identifies an active government providing primary general-purpose functions.

The Village of Swansea is located within Township of Saint Clair, a minor civil division (MCD) of St. Clair County.


Jump to... (On This Page!)
  1. Swansea 2023 Demographic Data
  2. Growth Rates for Swansea (Historical & 5-Year Forecast)
  3. Peer Comparisons (Rank and Percentile)
  1. Neighborhoods Demographics (Home Values, Household Income, etc.)
  2. Illinois Research Tools (Easy Tools & Current Data)
  3. Illinois Data Comparison Tool - 2023 Demographics
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Swansea, IL Data & Demographics (As of July 1, 2023)

POPULATION

Total Population 14,340 (100%)
Population in Households 14,194 (99.0%)
Population in Families 11,629 (81.1%)
Population in Group Quarters1 146 ( 1.0%)
Population Density 2,214
Diversity Index2 54
 
 

INCOME

Median Household Income $78,793
Average Household Income $114,464
% of Income for Mortgage4 15%
Per Capita Income $48,156
Wealth Index5 131
Socioeconomic Status Index6 Moderate (57.4)
 

HOUSING

Total HU (Housing Units) 6,454 (100%)
Owner Occupied HU 4,475 (69.3%)
Renter Occupied HU 1,556 (24.1%)
Vacant Housing Units 423 ( 6.6%)
Median Home Value $201,364
Average Home Value $229,877
Housing Affordability Index3 133
 

HOUSEHOLDS

Total Households 6,031
Average Household Size 2.35
Family Households 3,915
Average Family Size 3.00
NOTES
  1. Group Quarters - a place where people live or stay in a group living arrangement. Includes college residents halls, nursing facilities, military barracks, and correctional facilities.
  2. The Diversity Index is a scale of 0 to 100 that represents the likelihood that two persons, chosen at random from the same area, belong to different races or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.
  3. The Housing Affordability Index base is 100 and represents a balance point where a resident with a median household income can normally qualify to purchase a median price home. Values above 100 indicate increased affordability, while values below 100 indicate decreased affordability.
  4. The % of Income for Mortgage quantifies the percentage of median household income dedicated to mortgage payments on a home priced at the median value (assuming a 30-year mortgage and a 20% down payment).
  5. The Wealth Index is based on a number of indicators of affluence including average household income and average net worth, but it also includes the value of material possessions and resources. It represents the wealth of the area relative to the national level. Values above or below 100 represent above-average wealth or below-average wealth compared to the national level.
  6. The Socioeconomic Index ranges from zero (lowest relative status) to 100 (highest relative status). This measure quantifies disparities in social position of an area's inhabitants and is built from a broad range of demographic, housing, and socioeconomic inputs. More information on this measure can be found in Esri's SEI tutorial.

GROWTH RATE / YEAR

2020-2023 2023-2028
Population -0.10% -0.17%
Households -0.17% 0.14%
Families   0.14%
Median Household Income   2.02%
Per Capita Income   2.55%
Owner Occupied HU   0.17%

Swansea, IL - Peer Comparisons by Rank and Percentile

The table below compares Swansea to the other 1,464 incorporated cities, towns and CDPs in Illinois by rank and percentile using July 1, 2023 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.

Variable Description Rank Percentile
Total Population # 172 88th
Population Density # 208 86th
Median Household Income # 418 72nd
Housing Affordability Index # 651 44th
Per Capita Income # 211 86th
Diversity Index # 237 84th

Additional comparisons and rankings can be made with a VERY EASY TO USE Illinois Census Data Comparison Tool.

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