| ZIP Codes: | 17 ZIP Codes (13 Standard, 3 PO Box, 1 Unique) [See All] |
| Area Codes: | 225 / 985 |
| Timezone: | Central (GMT -06:00) |
| Local Time: | 11:53:44 PM |
| Population: | 144,482 [See All] |
| FIPS: | 22105 |
| CBSA: | Hammond, LA |
| Land Area: | 958 sq mi |
| Water Area: | 9 sq mi |
| Coordinates: | 30.6159, -90.4550 |
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144,482 residents live across 17 ZIPs covering 958 sq mi, served by 14 distinct USPS-recognized cities.
Population moved from 130,270 to 144,482 from 2014 to 2024 — a +10.9% change. 12 ZIPs gained residents, 3 lost.
The parish's wealthiest ZIP 70446 (Loranger, $71,892 median) and poorest ZIP 70456 (Roseland, $47,399) are 14.2 miles apart — a 1.5× income gap across local geography.
Median home values vary 2.2× across this parish — from $116,200 in 70456 (Roseland) to $249,900 in 70446 (Loranger).
Density varies 623× across the parish — from 35 people/sq mi in 70444 (Kentwood) to 21,765 in 70402 (Hammond).
Educational attainment ranges from 11.6% bachelor's+ in 70466 (Tickfaw) to 27.8% in 70401 (Hammond) — the breadth of educational profiles across the area.
Within Louisiana, this is the #9 most populous of 64 parishes and ranks #32 for median household income with the #5 fastest decade growth .
Hosts 1 single-entity Unique ZIP: 70402Southeastern Louisiana Univ .
Weighted by population, the typical household earns about $58,402 across the parish — reflecting what a typical resident sees, not a simple ZIP average.
20.4% of adults age 25+ hold a bachelor's degree or higher (19,374 of 94,906 reporting). The most-educated ZIPs cluster around Hammond.
13 Standard delivery, 3 PO Box only, 1 single-entity Unique ZIPs serve this parish.
| ZIP | City | Type | Population | Median Income | Area (sq mi) | 10-yr Growth |
|---|---|---|---|---|---|---|
| 70454 | Ponchatoula | Standard | 34,564 | $71,611 | 186.1 | 24.8% |
| 70403 | Hammond | Standard | 30,173 | $50,976 | 43.2 | 15.2% |
| 70401 | Hammond | Standard | 21,221 | $50,653 | 34.8 | 5.9% |
| 70422 | Amite | Standard | 15,399 | $50,560 | 170.8 | 4.4% |
| 70466 | Tickfaw | Standard | 10,148 | $65,807 | 35.9 | 15.0% |
| 70443 | Independence | Standard | 9,006 | $57,464 | 75.1 | -5.2% |
| 70444 | Kentwood | Standard | 8,687 | $52,148 | 248.7 | -12.5% |
| 70446 | Loranger | Standard | 7,173 | $71,892 | 82.8 | 6.2% |
| 70456 | Roseland | Standard | 3,193 | $47,399 | 33.6 | 12.0% |
| 70455 | Robert | Standard | 2,181 | $57,182 | 23.3 | 80.4% |
| 70402 | Hammond | Unique | 1,850 | — | 0.1 | 42.9% |
| 70465 | Tangipahoa | PO Box | 522 | $20,144 | 0.2 | 3.2% |
| 70442 | Husser | Standard | 196 | $65,268 | 16.4 | 24.1% |
| 70436 | Fluker | Standard | 104 | — | 5.5 | -79.4% |
| 70451 | Natalbany | PO Box | 65 | — | 0.0 | 22.6% |
| 70421 | Akers | Standard | — | — | 1.5 | — |
| 70404 | Hammond | PO Box | — | — | 0.0 | — |