Onalaska is a city in Polk County, Texas, home to about 3,210 people across 5.3 square miles. Its ZIP code is 77360.
Homes sold for a median of $159 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 Onalaska. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
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| Nearest major airport | George Bush Intercontinental Airport (IAH)60 miles away |
|---|---|
| Nearest city of 250,000+ | Houston, TX74 miles away |
Straight-line distances from the center of Onalaska; 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.
Onalaska had 3,020 residents in the 2020 census, up 157% since 2000.
It’s the 551st largest of 1,778 towns in Texas by population.
Polk County grew from 14,447 residents in 1900 to 50,123 in 2020.
Polk County, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 96°F in summer, and winter lows average 40°F. About 51 inches of rain and melted snow fall in a typical year.
Source: NOAA 1991–2020 climate normals, Livingston 2 Nne, TX weather station (12 miles away).
9,640 jobs at 859 businesses in Polk County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
7 doctors and other health care providers list an office in Onalaska.
Nearest hospitals
Providers with an office here
| Primary care doctors | 1 |
|---|---|
| Dentists | 1 |
| Nurse practitioners and physician assistants | 1 |
| Mental health providers | 3 |
| Chiropractors | 1 |
| Pharmacies | 1 |
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.
Parks (1 nearby)
Grocery stores (1 nearby)
Pharmacies (1 nearby)
Counts are within about 1.5 miles 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 Onalaska ISD. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| Onalaska ElOnalaska | Pre-K–6 | 704 | Public | 1.2 mi |
| Onalaska Jr./Sr. HighOnalaska | 7–12 | 492 | Public | 1.2 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.