Heritage Lake, Illinois Demographics & Population 2026
During the 2020–2024 ACS period, Heritage Lake, Illinois had a total population of 1,522, the 577th largest community in Illinois, with a median household income of $133,048, which is 60% higher than the state average. The poverty rate is 7.8%.
Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes
Key Takeaways
- Household income is 60% above the state average — one of the wealthiest communities in Illinois.
- Housing is very affordable with a home-value-to-income ratio of just 1.6x.
Heritage Lake Quick Facts
How Heritage Lake Changed
Change from the 2019–2023 ACS period to 2020–2024. These are rolling five-year estimates, not year-over-year measurements.
| Metric | 2019–2023 | 2020–2024 | Change |
|---|---|---|---|
| Population | 1,708 | 1,522 | -10.9% |
| Median household income | $117,422 | $133,048 | +13.3% |
| Median home value | $210,600 | $207,300 | -1.6% |
How Heritage Lake Compares
Median Household Income
Median Home Value
Economy & Housing
Household Income Distribution
Detailed income brackets
Employment
Housing Overview
People & Demographics
Age Distribution
Race & Ethnicity
Diversity Index
A less diverse community where one racial or ethnic group represents a large majority.
State average: 61 | National average: 61
Education
Educational Attainment (Adults 25+)
Heritage Lake Rankings in Illinois
Explore Illinois Rankings
Other Cities in Tazewell County
| City | Population | Median Income | Poverty | Home Value |
|---|---|---|---|---|
| East Peoria | 22,324 | $71,833 | 11.8% | $163,500 |
| Morton | 16,595 | $94,402 | 6.5% | $239,400 |
| Washington | 15,919 | $95,179 | 5.1% | $221,900 |
| Creve Coeur | 4,621 | $47,993 | 17.7% | $85,500 |
| Marquette Heights | 2,492 | $75,625 | 3.7% | $123,800 |
| Tremont | 2,366 | $79,810 | 5.1% | $187,400 |
| Mackinaw | 1,979 | $67,292 | 8.2% | $158,300 |
| North Pekin | 1,571 | $80,224 | 7.7% | $125,600 |
| Delavan | 1,489 | $62,841 | 11.0% | $123,600 |
| Minier | 1,102 | $88,542 | 6.3% | $148,400 |
Cities Similar to Heritage Lake
These cities in the same state have comparable population and economic profiles.
| City | Population | Median Income | Home Value | Bachelor's+ | Poverty |
|---|---|---|---|---|---|
| Leland Grove | 1,517 | $130,833 | $274,300 | 67.6% | 2.9% |
| Lake Camelot | 1,629 | $133,656 | $236,400 | 39.0% | 0.0% |
| Port Barrington | 1,477 | $149,886 | $379,600 | 49.2% | 2.7% |
| Twin Grove | 1,458 | $116,250 | $264,800 | 59.7% | 4.2% |
| Big Rock | 1,548 | $162,854 | $337,900 | 20.6% | 3.2% |
Population Overview
Heritage Lake is a small community located in Illinois, within Tazewell County. The total population is 1,522. It ranks as the 577th most populous out of 1,445 Census-designated places in Illinois.
Age Demographics
The median age in Heritage Lake is 42.1 years. This is 8% higher than the state median of 39.0 years.
Economy, Income & Housing
The median household income in Heritage Lake is $133,048. This is 60% higher than the state median of $83,390. It is also 65% higher than the national median of $80,734. The poverty rate stands at 7.8%. This is 34% lower than the state poverty rate of 11.8%. The survey records no unemployed residents in Heritage Lake, which reflects the size of the sample rather than a labor market without joblessness. The median home value is $207,300. Housing costs are 21% lower than the state median of $263,300. With a home-value-to-income ratio of just 1.6x, Heritage Lake is one of the most affordable housing markets in the area. 100.0% of occupied housing units are owner-occupied. This homeownership rate is 49% higher than the state average of 67.1%.
Race & Ethnicity
Heritage Lake has a predominantly White (non-Hispanic) population, comprising 98.9% of all residents. The White (non-Hispanic) population is significantly higher than the state average (98.9% vs 58.1%).
Education
33.7% of residents aged 25 and older hold a bachelor's degree or higher. This is 11% lower than the state rate of 37.9%. Nationally, 35.7% of adults hold at least a bachelor's degree. No surveyed resident aged 25 or older reported leaving school before earning a high school diploma, though a rate of exactly 100% reflects the limits of a small sample.
Data Sources & Methodology
All demographic data for Heritage Lake, Illinois is sourced from the U.S. Census Bureau's American Community Survey (ACS) 2020–2024 5-Year Estimates. The ACS collects data from approximately 3.5 million households annually and pools five years of responses so that even small communities can be measured, though the margin of error widens as the population falls. Comparisons are made against Illinois state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 1,445 Census-designated places in Illinois. Read more about how these figures are produced on our methodology page, or visit data.census.gov for official data.
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Frequently Asked Questions
What is the population of Heritage Lake, Illinois?
Heritage Lake, Illinois has a population of 1,522 according to the most recent U.S. Census ACS 5-Year Estimates.
What is the median household income in Heritage Lake, IL?
The median household income in Heritage Lake is $133,048, which is 65% higher than the national median of $80,734.
What is the poverty rate in Heritage Lake, IL?
The poverty rate in Heritage Lake is 7.8%. This means approximately 118 residents live below the federal poverty line.
What is the racial makeup of Heritage Lake, Illinois?
Heritage Lake's population is 98.9% White, 0.0% Black, 0.0% Hispanic/Latino, and 0.0% Asian.
What is the median home value in Heritage Lake, IL?
The median home value in Heritage Lake is $207,300. The home-value-to-income ratio is 1.6x.
How educated is Heritage Lake, Illinois?
33.7% of adults (25+) in Heritage Lake hold a bachelor's degree or higher, and 7.7% hold a graduate or professional degree.