City in Clark County, Illinois · 2 sq mi · 532 people per sq mi
1,076 people live in Martinsville. The typical household earns $61,833, and the median resident is 50.1 years old.
2026 projection
From 1,118 in 2020
Poverty rate 23.38%
Men 49.2 · Women 51.5
2010–2026
1,076
2026 projection
3.8% since 2020 (decrease)
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.
2010–2026
1,076
2026 projection
3.8% since 2020 (decrease)
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 | 1,076 | -7 | 0.65% |
|---|---|---|---|
| 2025 | 1,083 | -5 | 0.46% |
| 2024 | 1,088 | -8 | 0.73% |
| 2023 | 1,096 | +2 | 0.18% |
| 2022 | 1,094 | -12 | 1.08% |
| 2021 | 1,106 | -12 | 1.07% |
| 2020 | 1,118 | -4 | 0.36% |
| 2019 | 1,122 | -7 | 0.62% |
| 2018 | 1,129 | -15 | 1.31% |
| 2017 | 1,144 | -2 | 0.17% |
Showing 10 of 17 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.
Martinsville has a population change lower than Clark 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 12 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 4 residents
49% of residents age 15 and older are married.
| Status | Overall | Male | Female |
|---|---|---|---|
| Married | 49% | 54% | 44% |
| Never married | 29% | 29% | 28% |
| Divorced | 11% | 10% | 13% |
| Widowed | 10% | 7% | 13% |
| Separated | 2% | <1% | 3% |
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201
14 sources