CDP in Prince George's County, Maryland · 2.7 sq mi · 6,506 people per sq mi
About 18,000 people live in Adelphi. The typical household earns $82,137, and the median resident is 33.9 years old.
2026 projection
From 16,364 in 2020
Poverty rate 16.22%
Men 34.1 · Women 33.7
2011–2026
17,700
2026 projection
8.2% 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
17,700
2026 projection
8.2% 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 | 17,700 | +163 | 0.93% |
|---|---|---|---|
| 2025 | 17,537 | +327 | 0.95% |
| 2023 | 17,210 | +266 | 1.57% |
| 2022 | 16,944 | -33 | 0.19% |
| 2021 | 16,977 | +613 | 3.75% |
| 2020 | 16,364 | -13 | 0.08% |
| 2019 | 16,377 | +626 | 3.97% |
| 2018 | 15,751 | -147 | 0.92% |
| 2017 | 15,898 | +344 | 2.21% |
| 2016 | 15,554 | +7 | 0.05% |
Showing 10 of 15 years.
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S0101
Each square is about 1% of residents (roughly 174 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
35% of residents age 15 and older are married.
| Status | Overall | Male | Female |
|---|---|---|---|
| Married | 35% | 36% | 34% |
| Never married | 52% | 56% | 48% |
| Divorced | 9% | 5% | 12% |
| Widowed | 2% | 1% | 4% |
| Separated | 2% | 2% | 3% |
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201
10 sources, all from the U.S. Census Bureau