City in Williamson County, Illinois · 2.1 sq mi · 1,557 people per sq mi
About 3,300 people live in Johnston City. The typical household earns $42,465, and the median resident is 38.3 years old.
2026 projection
From 3,379 in 2020
Poverty rate 17.85%
Men 34.7 · Women 39.4
1900–2026
3,295
2026 projection
2.5% since 2020 (decrease)
Source: U.S. Census Bureau decennial counts and annual estimates. 2026 is a projection. Values between recorded years are interpolated.
Use the left and right arrow keys to inspect population observations.
1900–2026
3,295
2026 projection
2.5% since 2020 (decrease)
Source: U.S. Census Bureau decennial counts and annual estimates. 2026 is a projection. Values between recorded years are interpolated.
Use the left and right arrow keys to inspect population observations.
| 2026 | 3,295 | -18 | 0.54% |
|---|---|---|---|
| 2025 | 3,313 | +6 | 0.18% |
| 2024 | 3,307 | +1 | 0.03% |
| 2023 | 3,306 | -9 | 0.27% |
| 2022 | 3,315 | -31 | 0.93% |
| 2021 | 3,346 | -33 | 0.98% |
| 2020 | 3,379 | -14 | 0.41% |
| 2019 | 3,393 | -41 | 1.19% |
| 2018 | 3,434 | -14 | 0.41% |
| 2017 | 3,448 | -38 | 1.09% |
Showing 10 of 28 years.
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S0101
Each square is about 1% of residents (roughly 33 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 6 residents
42% of residents age 15 and older are married.
| Status | Overall | Male | Female |
|---|---|---|---|
| Married | 42% | 41% | 42% |
| Never married | 29% | 36% | 23% |
| Divorced | 20% | 21% | 20% |
| Widowed | 9% | 2% | 14% |
| Separated | <1% | 0% | 1% |
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201
10 sources, all from the U.S. Census Bureau