# Counties in Mississippi by median age on 1 July (US county estimates), 2025

All 82 values come from U.S. Census Bureau for 2025, so the places are comparable.

- Indicator id: `median_age_pep`
- Unit: years
- Definition: Age that divides the resident population of a US county into two halves of equal size on 1 July, from Census Bureau population estimates calculated by single year of age.
- Source: U.S. Census Bureau, Population Estimates Program, county population by age and sex: median age (MEDIAN_AGE_TOT) on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage (https://www.census.gov/programs-surveys/popest/data/data-sets.html)
- Publisher page: https://invokely.ai/en/publishers/us-census-bureau
- Retrieved: 2026-10-12
- Citation: U.S. Census Bureau. Population Estimates Program, county population by age and sex: median age (MEDIAN_AGE_TOT) on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage. https://www.census.gov/programs-surveys/popest/data/data-sets.html. Retrieved 2026-10-12.
- Web page: https://invokely.ai/rankings/median-age-july-1-us-counties/mississippi-counties

| Rank | Place | years |
|---:|---|---:|
| 1 | Carroll County | 49 |
| 2 | Amite County | 48.9 |
| 3 | Hancock County | 45.9 |
| 3 | Yalobusha County | 45.9 |
| 5 | Jefferson Davis County | 45.3 |
| 6 | Choctaw County | 45 |
| 6 | Montgomery County | 45 |
| 8 | Franklin County | 44.9 |
| 9 | Calhoun County | 44.7 |
| 9 | Sharkey County | 44.7 |
| 11 | Tishomingo County | 44.5 |
| 12 | Benton County | 44.4 |
| 13 | Walthall County | 44.1 |
| 14 | Jasper County | 43.9 |
| 15 | Wilkinson County | 43.5 |
| 16 | Clarke County | 43.4 |
| 17 | Monroe County | 43.3 |
| 18 | Perry County | 43.2 |
| 19 | Smith County | 43.1 |
| 20 | Marshall County | 42.7 |
| 20 | Quitman County | 42.7 |
| 22 | Winston County | 42.6 |
| 23 | Jefferson County | 42.4 |
| 23 | Lawrence County | 42.4 |
| 25 | Clay County | 42.2 |
| 26 | Simpson County | 41.8 |
| 26 | Warren County | 41.8 |
| 28 | Marion County | 41.6 |
| 28 | Tallahatchie County | 41.6 |
| 30 | Grenada County | 41.5 |
| 31 | Covington County | 41.4 |
| 31 | Kemper County | 41.4 |
| 33 | Attala County | 41.3 |
| 33 | Copiah County | 41.3 |
| 33 | Pearl River County | 41.3 |
| 36 | Adams County | 41.2 |
| 36 | Itawamba County | 41.2 |
| 36 | Lincoln County | 41.2 |
| 39 | Chickasaw County | 40.9 |
| 39 | Greene County | 40.9 |
| 39 | Humphreys County | 40.9 |
| 42 | Alcorn County | 40.8 |
| 42 | Jackson County | 40.8 |
| 42 | Washington County | 40.8 |
| 42 | Webster County | 40.8 |
| 46 | Madison County | 40.7 |
| 47 | Pike County | 40.6 |
| 47 | Sunflower County | 40.6 |
| 49 | Noxubee County | 40.3 |
| 50 | Tippah County | 40.2 |
| 51 | Panola County | 40.1 |
| 51 | Yazoo County | 40.1 |
| 53 | Lauderdale County | 40 |
| 54 | Rankin County | 39.9 |
| 55 | Stone County | 39.8 |
| 55 | Wayne County | 39.8 |
| 57 | Union County | 39.7 |
| 58 | Jones County | 39.6 |
| 59 | Issaquena County | 39.5 |
| 60 | Harrison County | 39.4 |
| 61 | Bolivar County | 39.2 |
| 61 | Lee County | 39.2 |
| 63 | Holmes County | 39.1 |
| 64 | Hinds County | 39 |
| 65 | Tate County | 38.7 |
| 66 | Leake County | 38.4 |
| 66 | Newton County | 38.4 |
| 68 | DeSoto County | 38.2 |
| 68 | Lowndes County | 38.2 |
| 70 | Prentiss County | 37.9 |
| 71 | Leflore County | 37.8 |
| 72 | Pontotoc County | 37.7 |
| 73 | Lamar County | 37.6 |
| 74 | Neshoba County | 37.5 |
| 75 | Tunica County | 37.4 |
| 76 | Claiborne County | 37 |
| 76 | George County | 37 |
| 78 | Scott County | 36.9 |
| 79 | Coahoma County | 36.5 |
| 80 | Forrest County | 33.5 |
| 81 | Lafayette County | 31.6 |
| 82 | Oktibbeha County | 26.4 |