U.S. median age by state and county
The age dividing the total population into two equal groups.
United States · 2020–2024 · years · median. U.S. Census Bureau, ACS five-year B01002.
- Who is counted
- Total population
- Definition
- The age dividing the total population into two equal groups.
- Source publication date
- 2026-01-29
- Uncertainty
- Source 90% margin of error
- Website calculation or variable
- B01002_001E
- Frozen website snapshot
- apd-2026-10-01-r3 · published October 1, 2026; sources acquired September 30, 2026
Source: U.S. Census Bureau · ACS five-year, B01002 · median. Source uncertainty shown below.
Show accessible data table
| Area | Value (years) | Numerator | Denominator | 90% MOE |
|---|---|---|---|---|
| United States | 38.9 | Not applicable | Not applicable | 0.1 |
| Texas | 35.6 | Not applicable | Not applicable | 0.1 |
| California | 37.9 | Not applicable | Not applicable | 0.1 |
| New York | 39.8 | Not applicable | Not applicable | 0.1 |
| Florida | 42.6 | Not applicable | Not applicable | 0.1 |
Median age: definition and scope
The age dividing the total population into two equal groups. The headline is the latest value approved within this website’s frozen release. It is not a promise that no newer upstream product exists. The accessible table retains more precision than the rounded headline.
Limitations and comparability
A median is not additive and cannot be averaged to obtain a regional median.
The estimate describes the full 2020–2024 ACS period. Compare it with the same five-year product and universe. One-year ACS, model-based products and administrative counts cannot be joined into an unlabeled series.
The direct ACS estimate carries the source 90% margin of error where published. A missing or source-controlled margin of error is identified in the raw file rather than invented. Cross-area associations do not establish individual circumstances or explain what caused a difference.
Source data, calculation and CSV downloads
Use the original selected cells, schema and formula with the immutable release. Summary-file columns use E001/M001; formulas use the corresponding ACS codes ending in E. Percentage numerators and denominators are supplied in the export.
B01002_001E
Original producer file · National source cells · Original table dictionary · All covered areas for this indicator (CSV)
Median age by state
Same measure, source product and reference period. Alphabetical order; descriptive differences are not significance tests.
| Area | Exact value (years) | Numerator / denominator | 90% MOE / status |
|---|---|---|---|
| Alabama | 39.3 | Not applicable | ± 0.2 · available |
| Alaska | 35.8 | Not applicable | ± 0.1 · available |
| Arizona | 39 | Not applicable | ± 0.1 · available |
| Arkansas | 38.5 | Not applicable | ± 0.2 · available |
| California | 37.9 | Not applicable | ± 0.1 · available |
| Colorado | 37.7 | Not applicable | ± 0.1 · available |
| Connecticut | 41.1 | Not applicable | ± 0.2 · available |
| Delaware | 41.6 | Not applicable | ± 0.2 · available |
| District of Columbia | 34.9 | Not applicable | ± 0.1 · available |
| Florida | 42.6 | Not applicable | ± 0.1 · available |
| Georgia | 37.6 | Not applicable | ± 0.1 · available |
| Hawaii | 40.9 | Not applicable | ± 0.1 · available |
| Idaho | 37.3 | Not applicable | ± 0.1 · available |
| Illinois | 39 | Not applicable | ± 0.1 · available |
| Indiana | 38.1 | Not applicable | ± 0.2 · available |
| Iowa | 38.6 | Not applicable | ± 0.2 · available |
| Kansas | 37.4 | Not applicable | ± 0.1 · available |
| Kentucky | 39.1 | Not applicable | ± 0.1 · available |
| Louisiana | 38 | Not applicable | ± 0.1 · available |
| Maine | 44.8 | Not applicable | ± 0.1 · available |
| Maryland | 39.4 | Not applicable | ± 0.1 · available |
| Massachusetts | 40 | Not applicable | ± 0.1 · available |
| Michigan | 40.2 | Not applicable | ± 0.1 · available |
| Minnesota | 38.8 | Not applicable | ± 0.1 · available |
| Mississippi | 38.6 | Not applicable | ± 0.1 · available |
| Missouri | 39 | Not applicable | ± 0.2 · available |
| Montana | 40.4 | Not applicable | ± 0.2 · available |
| Nebraska | 37.2 | Not applicable | ± 0.2 · available |
| Nevada | 39.1 | Not applicable | ± 0.1 · available |
| New Hampshire | 43.3 | Not applicable | ± 0.1 · available |
| New Jersey | 40.1 | Not applicable | ± 0.1 · available |
| New Mexico | 39.4 | Not applicable | ± 0.1 · available |
| New York | 39.8 | Not applicable | ± 0.1 · available |
| North Carolina | 39.1 | Not applicable | ± 0.2 · available |
| North Dakota | 35.9 | Not applicable | ± 0.2 · available |
| Ohio | 39.7 | Not applicable | ± 0.2 · available |
| Oklahoma | 37 | Not applicable | ± 0.1 · available |
| Oregon | 40.4 | Not applicable | ± 0.2 · available |
| Pennsylvania | 40.9 | Not applicable | ± 0.2 · available |
| Rhode Island | 40.6 | Not applicable | ± 0.2 · available |
| South Carolina | 40.2 | Not applicable | ± 0.2 · available |
| South Dakota | 38 | Not applicable | ± 0.2 · available |
| Tennessee | 38.9 | Not applicable | ± 0.1 · available |
| Texas | 35.6 | Not applicable | ± 0.1 · available |
| Utah | 32 | Not applicable | ± 0.1 · available |
| Vermont | 43.1 | Not applicable | ± 0.2 · available |
| Virginia | 39 | Not applicable | ± 0.1 · available |
| Washington | 38.3 | Not applicable | ± 0.1 · available |
| West Virginia | 42.7 | Not applicable | ± 0.2 · available |
| Wisconsin | 40.2 | Not applicable | ± 0.1 · available |
| Wyoming | 39.1 | Not applicable | ± 0.2 · available |