City in Mason County, Illinois · 1 sq mi · 1,906 people per sq mi
About 1,900 people live in Mason City. The typical household earns $66,524, and the median resident is 49.8 years old.
2026 projection
From 2,068 in 2020
Poverty rate 16.7%
Men 49.5 · Women 50.3
2010–2026
1,931
2026 projection
6.6% 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.
2010–2026
1,931
2026 projection
6.6% 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 | 1,931 | -25 | 1.28% |
|---|---|---|---|
| 2025 | 1,956 | -15 | 0.76% |
| 2024 | 1,971 | -17 | 0.86% |
| 2023 | 1,988 | -23 | 1.14% |
| 2022 | 2,011 | -19 | 0.94% |
| 2021 | 2,030 | -38 | 1.84% |
| 2020 | 2,068 | -55 | 2.59% |
| 2019 | 2,123 | -22 | 1.03% |
| 2018 | 2,145 | -26 | 1.20% |
| 2017 | 2,171 | -4 | 0.18% |
Showing 10 of 17 years.
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S0101
Each square is about 1% of residents (roughly 22 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
49% of residents age 15 and older are married.
| Status | Overall | Male | Female |
|---|---|---|---|
| Married | 49% | 50% | 48% |
| Never married | 29% | 35% | 24% |
| Divorced | 10% | 3% | 16% |
| Widowed | 11% | 10% | 11% |
| Separated | 2% | 2% | 2% |
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201
10 sources, all from the U.S. Census Bureau