Market insights · Louisiana
St. Tammany Parish, LA: growth, migration and housing
St. Tammany Parish has 279,108 residents, up 5.3% since 2020 (+0.5% in the last year). In 2022–2023, 6,524 households moved in and 6,197 moved out (+327 net), bringing in a net $52.9M of income. Median household income is $81,202, the median home $284,000 and median rent $1,332 a month.
In Louisiana: 8th of 64 counties for 5-year population growth · 7th of 64 counties for net in-migration (per resident) · 4th of 64 counties for median household income · 2nd of 64 counties for median home value.
Where new residents came from
Top counties by households (tax returns) moving to St. Tammany Parish, 2022–2023 (IRS).
| From | Households (tax returns) | Their income (AGI) |
|---|---|---|
| Jefferson Parish, LA | 1,115 | $78.9M |
| Orleans Parish, LA | 971 | $67.1M |
| Tangipahoa Parish, LA | 436 | $23.2M |
| East Baton Rouge Parish, LA | 228 | $16.8M |
| Pearl River County, MS | 163 | $7.5M |
| St. Bernard Parish, LA | 159 | $8.3M |
| Washington Parish, LA | 158 | $6.7M |
| Harris County, TX | 123 | $11.7M |
Where leavers went
Top counties by households leaving St. Tammany Parish, 2022–2023 (IRS).
| To | Households (tax returns) | Their income (AGI) |
|---|---|---|
| Jefferson Parish, LA | 593 | $34.6M |
| Tangipahoa Parish, LA | 579 | $27.9M |
| Orleans Parish, LA | 509 | $27.4M |
| Pearl River County, MS | 298 | $17.8M |
| East Baton Rouge Parish, LA | 221 | $13.7M |
| Washington Parish, LA | 168 | $8.8M |
| Harris County, TX | 163 | $11.1M |
| Hancock County, MS | 157 | $10.5M |
BizyFi in St. Tammany Parish
Fewer than 3 companies in the BizyFi directory are based here. Search them on the company map (company names with a free account), or browse Louisiana companies.
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Sources: U.S. Census Bureau population estimates (vintage 2025), American Community Survey 5-year (2024), and IRS Statistics of Income county-to-county migration data (2022–2023). Migration counts are tax returns (roughly households) moving between U.S. counties; the IRS suppresses very small flows. Growth rates, per-1,000 figures, rent share and state ranks are BizyFi calculations. Data updated 2026-10-17. This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.