County ZIP codes · Louisiana · FIPS 22053
Jefferson Davis Parish, LA ZIP Codes
Jefferson Davis Parish, Louisiana has 10 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026), all residential. 7 of the residential ones lie mainly in Jefferson Davis Parish and 3 mainly in a neighboring county; 6 cross the county line. Median household income ranges from $44,095 in 70532 (Elton) to $71,045 in 70647 (Iowa) (Census Bureau, ACS 2020-2024).
- ACS2020-24
- Census2020
Where are the ZIP codes of Jefferson Davis Parish?
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries; ACS 2020-2024 5-year estimates (B19013).
How different are its ZIP codes?
The middle half of its ranked ZIP codes (1,000+ people living in households) report median household incomes between $48,750 and $57,692.
They carry 10 postal town names.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B19013).
All 10 residential ZIP codes in Jefferson Davis Parish
7 ZIP codes lie mainly in Jefferson Davis Parish; 3 more reach into it from a neighboring county and follow the first table.
| In this county | ||||||
|---|---|---|---|---|---|---|
| 70546 | Jennings | 15,242 | 100 | $52k | $153k | 89% |
| 70591 | Welsh | 5,983 | 35 | $78k | $159k | 100% |
| 70549 | Lake Arthur | 3,874 | 24 | $58k | $115k | 62% |
| 70532 | Elton | 2,434 | 26 | $44k | $100k | 64% |
| 70581 | Roanoke | 958 | 37 | $71k | $164k | 100% |
| 70650 | Lacassine | 218 | 129 | – | – | 100% |
| 70640 | Fenton | 196 | 920 | $22k | $97k | 100% |
Partly in Jefferson Davis Parish
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates; county shares by land area (Census 2020 ZCTA-county relationship file).
Which ZIP codes cross the county line?
6 ZIP codes of Jefferson Davis Parish extend into another county. A ZIP code follows mail routes, not county borders.
| ZIP | In Jefferson Davis | Elsewhere |
|---|---|---|
| 70546 | 89% | Acadia Parish 11% |
| 70647 | 49% | Calcasieu Parish 51% |
| 70648 | 27% | Allen Parish 73% |
| 70657 | 7% | Beauregard Parish 67%; Allen Parish 25% |
| 70549 | 62% | Cameron Parish 38% |
| 70532 | 64% | Allen Parish 36% |
Source: U.S. Census Bureau, 2020 ZCTA-county relationship file (shares of land area).
Which first three digits do Jefferson Davis Parish's ZIP codes use?
The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Jefferson Davis Parish's ZIP codes use 2 prefixes: 705 and 706.
| Prefix | Sectional center | Here | All codes |
|---|---|---|---|
| 705 | Lafayette, LA (SCF 705) | 5 | 75 |
| 706 | Lafayette, LA (SCF 705) | 5 | 44 |
Source: U.S. Postal Service, labeling list L005 (3-digit ZIP Code prefix groups, SCF sortation), effective October 1, 2026.