| ZIP Codes: | 11 ZIP Codes (8 Standard, 3 PO Box, 0 Unique) [See All] |
| Area Code: | 337 |
| Timezone: | Central (GMT -06:00) |
| Local Time: | 2:12:23 PM |
| Population: | 58,840 [See All] |
| FIPS: | 22001 |
| CBSA: | Lafayette, LA |
| Land Area: | 591 sq mi |
| Water Area: | 2 sq mi |
| Coordinates: | 30.2534, -92.4271 |
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58,840 residents live across 11 ZIPs covering 591 sq mi, served by 10 distinct USPS-recognized cities.
Population moved from 60,973 to 58,840 from 2014 to 2024 — a -3.5% change. 5 ZIPs gained residents, 5 lost.
The parish's wealthiest ZIP 70556 (Mermentau, $117,764 median) and poorest ZIP 70526 (Crowley, $37,747) are 10.1 miles apart — a 3.1× income gap across local geography.
Median home values vary 4.0× across this parish — from $55,300 in 70556 (Mermentau) to $219,100 in 70531 (Egan).
Density varies 9× across the parish — from 30 people/sq mi in 70559 (Morse) to 279 in 70534 (Estherwood).
Educational attainment ranges from 2.7% bachelor's+ in 70516 (Branch) to 37.0% in 70556 (Mermentau) — the breadth of educational profiles across the area.
Within Louisiana, this is the #18 most populous of 64 parishes and ranks #23 for median household income .
Weighted by population, the typical household earns about $47,705 across the parish — reflecting what a typical resident sees, not a simple ZIP average.
14.6% of adults age 25+ hold a bachelor's degree or higher (5,656 of 38,622 reporting).
8 Standard delivery, 3 PO Box only, 0 single-entity Unique ZIPs serve this parish.
Median household income spans 3.1× between the wealthiest and poorest ZIPs — a sign of significant intra-county inequality.
A frontier parish — vast land area with only a few residents per square mile. Daily life looks very different here than in the country's denser counties.
| ZIP | City | Type | Population | Median Income | Area (sq mi) | 10-yr Growth |
|---|---|---|---|---|---|---|
| 70526 | Crowley | Standard | 16,566 | $37,747 | 124.8 | -15.8% |
| 70578 | Rayne | Standard | 16,432 | $49,875 | 122.9 | -1.9% |
| 70525 | Church Point | Standard | 14,687 | $44,697 | 104.6 | 7.4% |
| 70543 | Iota | Standard | 4,082 | $62,083 | 68.6 | -7.2% |
| 70559 | Morse | Standard | 2,699 | $71,563 | 88.5 | 5.2% |
| 70531 | Egan | Standard | 1,477 | — | 30.9 | 12.0% |
| 70516 | Branch | Standard | 1,267 | $53,750 | 34.1 | 83.1% |
| 70556 | Mermentau | PO Box | 627 | $117,764 | 5.5 | 60.4% |
| 70534 | Estherwood | PO Box | 622 | $45,833 | 2.2 | -32.1% |
| 70537 | Evangeline | Standard | 381 | — | 8.7 | -35.9% |
| 70527 | Crowley | PO Box | — | — | 0.0 | — |