FHA Loan Limits and USDA Eligibility in St. Tammany Parish, Louisiana
2026 FHA one-unit limit in St. Tammany Parish is $541,287. Two-unit is $693,050, three-unit is $837,700, and four-unit is $1,041,125. USDA 502 Guaranteed 1–4 person moderate income is $122,800. Enter a ZIP on the maps. USDA scores the property address, not the county.
2026 FHA Loan Limits Map for Louisiana
Louisiana one-unit limits: —
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Standard Floor: $541,287Mid-Tier: $541,288–$750,000High-Cost: $750,001–$1,000,000Elite Zone: $1,000,001+
USDA Property Eligibility and Income Limits Map for Louisiana
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EligibleIneligibleUSDA ineligible boundary
St. Tammany Parish FHA Loan Limits and USDA Income
FHA one-unit caps are county. USDA 1–4 person guaranteed income can split a county; when a ZIP lists more than one cap, both are listed. This table does not mark a ZIP as USDA eligible or ineligible.
| ZIP | FHA one-unit loan limit | USDA 1–4 person moderate income |
|---|---|---|
| 70420 | $541,287 | $122,800 |
| 70427 | $541,287 | $122,800 |
| 70431 | $541,287 | $122,800 |
| 70433 | $541,287 | $122,800 |
| 70434 | $541,287 | $122,800 |
| 70435 | $541,287 | $122,800 |
| 70437 | $541,287 | $122,800 |
| 70445 | $541,287 | $122,800 |
| 70447 | $541,287 | $122,800 |
| 70448 | $541,287 | $122,800 |
| 70452 | $541,287 | $122,800 |
| 70457 | $541,287 | $122,800 |
| 70458 | $541,287 | $122,800 |
| 70459 | $541,287 | $122,800 |
| 70460 | $541,287 | $122,800 |
| 70461 | $541,287 | $122,800 |
| 70463 | $541,287 | $122,800 |
| 70464 | $541,287 | $122,800 |
| 70471 | $541,287 | $122,800 |