Village in Will County, Illinois · 15.6 sq mi · 1,382 people per sq mi
21,576 people live in Frankfort. The typical household earns $154,375, and the median resident is 42.2 years old.
2026 projection
From 20,296 in 2020
Poverty rate 3.22%
Men 41.1 · Women 43.9
1880–2026
21,576
2026 projection
6.3% since 2020 (increase)
Source: U.S. Census Bureau decennial counts and annual estimates, including 2010–2020 intercensal estimates. 2026 is a projection. Values between recorded years are interpolated.
Use the left and right arrow keys to inspect population observations.
1880–2026
21,576
2026 projection
6.3% since 2020 (increase)
Source: U.S. Census Bureau decennial counts and annual estimates, including 2010–2020 intercensal estimates. 2026 is a projection. Values between recorded years are interpolated.
Use the left and right arrow keys to inspect population observations.
| 2026 | 21,576 | +211 | 0.99% |
|---|---|---|---|
| 2025 | 21,365 | +207 | 0.98% |
| 2024 | 21,158 | +177 | 0.84% |
| 2023 | 20,981 | +275 | 1.33% |
| 2022 | 20,706 | +183 | 0.89% |
| 2021 | 20,523 | +227 | 1.12% |
| 2020 | 20,296 | +122 | 0.60% |
| 2019 | 20,174 | +311 | 1.57% |
| 2018 | 19,863 | +255 | 1.30% |
| 2017 | 19,608 | +226 | 1.17% |
Showing 10 of 30 years.
The 2020 row compares the April 1 Census count with the July 1, 2019 estimate (about nine months). Its Growth and Annual change therefore do not represent a full year.
Frankfort is growing faster than Will County, Illinois, and the U.S.
Change from July 1, 2020 to July 1, 2025 population estimates—not annualized growth or site projections.
Source: U.S. Census Bureau. U.S. totals are summed from the 50 states and D.C.; unavailable comparisons are omitted.
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S0101
Each square is about 1% of residents (roughly 207 people).
Hispanic or Latino residents can be of any race. All other groups exclude Hispanic residents.
U.S. Census Bureau, 2024 ACS 5-year estimates · Table B03002
Half of households earn more, half earn less
Typical yearly pay for a worker 25 or older.
About 1 in 31 residents
63% of residents age 15 and older are married.
| Status | Overall | Male | Female |
|---|---|---|---|
| Married | 63% | 67% | 60% |
| Never married | 24% | 24% | 25% |
| Divorced | 6% | 5% | 8% |
| Widowed | 5% | 3% | 7% |
| Separated | <1% | <1% | 1% |
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201
14 sources