Lake Arthur is a town in Jefferson Davis Parish, Louisiana, home to about 2,585 people across 1.9 square miles. Its ZIP code is 70549.
Homes sold for a median of $61 per square foot in the three months ending August 2026, a buyer’s market.
Each card is that ZIP code’s whole market, including any part outside Lake Arthur. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up Lake Arthur’s story and what everyday life there is like, for people thinking about moving in.
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| Nearest major airport | Louis Armstrong New Orleans International Airport (MSY)145 miles away |
|---|---|
| Closer regional airport | Lake Charles Regional Airport (LCH)32 miles away |
| Nearest city of 250,000+ | Houston, TX163 miles away |
Straight-line distances from the center of Lake Arthur; driving is longer.
Source: Airports from OurAirports (scheduled passenger service); city centers and populations from the U.S. Census Bureau.
Source: Members of Congress from the congress-legislators project; districts from the Census Bureau’s relationship files; governor and mayor from Wikidata.
Lake Arthur had 2,595 residents in the 2020 census, down 14% since 2000.
It’s the 164th largest of 487 towns in Louisiana by population.
Jefferson Davis Parish grew from 18,999 residents in 1920 to 32,250 in 2020.
Jefferson Davis Parish, 1920–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 92°F in summer, and winter lows average 44°F. About 60.1 inches of rain and melted snow fall in a typical year, with about 0 inches of snow.
Source: NOAA 1991–2020 climate normals, Lake Arthur 7 Sw, LA weather station (7 miles away).
6,660 jobs at 633 businesses in Jefferson Davis Parish. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
4 doctors and other health care providers list an office in Lake Arthur.
Nearest hospitals
Providers with an office here
| Nurse practitioners and physician assistants | 4 |
|---|---|
| Pharmacies | 2 |
Source: Hospitals from CMS Hospital General Information (ratings are CMS overall star ratings); straight-line distances; providers from the CMS National Plan and Provider Enumeration System (NPPES), by practice address and primary specialty.
Public schools here are run by Jefferson Davis Parish. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| Lake Arthur Elementary SchoolLake Arthur | Pre-K–6 | 441 | Public | 0.6 mi |
| Lake Arthur High SchoolLake Arthur | 7–12 | 365 | Public | 0.9 mi |
Source: U.S. Department of Education, NCES: Common Core of Data (2024-2025) for public schools. Listed by address; we don’t rate schools.
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Town boundaries don’t always match ZIP codes: a ZIP code can cross into neighboring towns, and a town can share a ZIP code with its neighbors. Facts describe the town itself; market figures describe whole ZIP codes.