CDP in Rock Island County, Illinois · 1.6 sq mi · 269 people per sq mi
About 420 people live in Rock Island Arsenal. The median resident is 39.3 years old.
2026 projection
From 353 in 2020
Poverty rate 0%
Men 46.2 · Women 27.5
2011–2026
423
2026 projection
19.8% since 2020 (increase)
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.
2011–2026
423
2026 projection
19.8% since 2020 (increase)
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 | 423 | +17 | 4.19% |
|---|---|---|---|
| 2025 | 406 | +34 | 4.47% |
| 2023 | 372 | -3 | 0.80% |
| 2022 | 375 | +44 | 13.29% |
| 2021 | 331 | -22 | 6.23% |
| 2020 | 353 | +348 | 740.24% |
| 2018 | 5 | -47 | 90.38% |
| 2017 | 52 | -67 | 56.30% |
| 2016 | 119 | -12 | 9.16% |
| 2015 | 131 | +14 | 11.97% |
Showing 10 of 14 years.
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S0101
Each square is about 1% of residents (roughly 5 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
77% of residents age 15 and older are married.
| Status | Overall | Male | Female |
|---|---|---|---|
| Married | 77% | 85% | 65% |
| Never married | 14% | 0% | 35% |
| Divorced | 9% | 15% | 0% |
| Widowed | 0% | 0% | 0% |
| Separated | 0% | 0% | 0% |
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201
7 sources, all from the U.S. Census Bureau