Arnold Line is a community in Lamar County, Mississippi, home to about 1,859 people across 1.7 square miles. It has no ZIP code of its own: it’s part of 39402.
Homes sold for a median of $153 per square foot in the three months ending August 2026, a seller’s market.
Mostly Hattiesburg; part is in Arnold Line
Each card is that ZIP code’s whole market, including any part outside Arnold Line. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up Arnold Line’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)105 miles away |
|---|---|
| Closer regional airport | Hattiesburg Laurel Regional Airport (PIB)11 miles away |
| Nearest city of 250,000+ | New Orleans, LA93 miles away |
| Nearest city of 1 million+ | Houston, TX373 miles away |
Straight-line distances from the center of Arnold Line; 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.
Arnold Line had 2,333 residents in the 2020 census, up 36% since 2010.
It’s the 140th largest of 420 towns in Mississippi by population.
Lamar County grew from 11,741 residents in 1910 to 64,222 in 2020.
Lamar County, 1910–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 91°F in summer, and winter lows average 38°F. About 64.5 inches of rain and melted snow fall in a typical year, with about 1 inches of snow.
Source: NOAA 1991–2020 climate normals, Hattiesburg 5sw, MS weather station (4 miles away).
19,611 jobs at 1,505 businesses in Lamar County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
765 doctors and other health care providers list an office in Arnold Line.
Nearest hospitals
Providers with an office here
| Primary care doctors | 95 |
|---|---|
| Specialist doctors | 179 |
| Dentists | 73 |
| Nurse practitioners and physician assistants | 153 |
| Mental health providers | 175 |
| Physical and occupational therapists | 61 |
| Optometrists | 14 |
| Chiropractors | 15 |
| Pharmacies | 29 |
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.
Grocery stores (2 nearby)
Pharmacies (1 nearby)
Libraries
Counts are within about 1 mile of the center of town.
Source: Map data © OpenStreetMap contributors (openstreetmap.org/copyright), as mapped by volunteers; it can miss places or include closed ones.
Public schools here are run by Lamar County School District, Forrest County School District, Hattiesburg. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| Bellevue ElementaryHattiesburg | Pre-K–5 | 1,145 | Public | 6.0 mi |
| Longleaf ElementaryHattiesburg | Pre-K–5 | 787 | Public | 2.3 mi |
| Oak Grove ElementaryHattiesburg | Pre-K–5 | 758 | Public | 2.9 mi |
| Rawls Springs Attendance CenterHattiesburg | Pre-K–6 | 214 | Public | 5.0 mi |
| Thames ElementaryHattiesburg | Pre-K–5 | 619 | Public | 2.4 mi |
| Oak Grove Middle SchoolHattiesburg | 6–8 | 1,160 | Public | 3.0 mi |
| Oak Grove High SchoolHattiesburg | 9–13 | 1,750 | Public | 1.6 mi |
| School | Grades | Students | Affiliation | Distance |
|---|---|---|---|---|
| Grace Community SchoolHattiesburg | Pre-K–K | 3 | Christian (no specific denomination) | 1.7 mi |
Source: U.S. Department of Education, NCES: Common Core of Data (2024-2025) for public schools; Private School Universe Survey (2023-2024) for private schools. Listed by address; we don’t rate schools.
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Shares ZIP codes with Hattiesburg, West Hattiesburg, Oak Grove and Rawls Springs.
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.