City in St. Tammany Parish, Louisiana · 9.4 sq mi · 1,385 people per sq mi
About 13,000 people live in Mandeville. The typical household earns $94,405, and the median resident is 43.7 years old.
2026 projection
From 12,822 in 2020
Poverty rate 7.1%
Men 43.5 · Women 43.8
1870–2026
12,958
2026 projection
1.1% 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.
1870–2026
12,958
2026 projection
1.1% 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 | 12,958 | +40 | 0.31% |
|---|---|---|---|
| 2025 | 12,918 | -66 | 0.51% |
| 2024 | 12,984 | -19 | 0.15% |
| 2023 | 13,003 | -1 | 0.01% |
| 2022 | 13,004 | +39 | 0.30% |
| 2021 | 12,965 | +143 | 1.12% |
| 2020 | 12,822 | +245 | 1.95% |
| 2019 | 12,577 | +28 | 0.22% |
| 2018 | 12,549 | +3 | 0.02% |
| 2017 | 12,546 | +45 | 0.36% |
Showing 10 of 31 years.
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S0101
Each square is about 1% of residents (roughly 129 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 14 residents
59% of residents age 15 and older are married.
| Status | Overall | Male | Female |
|---|---|---|---|
| Married | 59% | 63% | 55% |
| Never married | 22% | 25% | 20% |
| Divorced | 15% | 10% | 19% |
| Widowed | 4% | 2% | 6% |
| Separated | <1% | <1% | <1% |
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201
10 sources, all from the U.S. Census Bureau