Staples is a city in Caldwell County, Texas, home to about 288 people across 1.5 square miles. Its ZIP code is 78670, and parts of 78638 and 78655 are in Staples too.
Homes sold for a median of $286 per square foot across 2 ZIP codes in the three months ending August 2026, and 0 of 2 were seller’s markets.
Mostly Staples
Part is in Staples, part in Seguin and Kingsbury
Mostly Martindale; part is in Staples
Each card is that ZIP code’s whole market, including any part outside Staples. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
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| Nearest major airport | Austin Bergstrom International Airport (AUS)32 miles away |
|---|---|
| Nearest city of 250,000+ | Austin, TX37 miles away |
| Nearest city of 1 million+ | San Antonio, TX46 miles away |
Straight-line distances from the center of Staples; 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.
Staples had 193 residents in the 2020 census, down 28% since 2010.
It’s the 1448th largest of 1,778 towns in Texas by population.
Caldwell County grew from 21,765 residents in 1900 to 45,883 in 2020.
Caldwell County, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 97°F in summer, and winter lows average 39°F. About 36.5 inches of rain and melted snow fall in a typical year.
Source: NOAA 1991–2020 climate normals, San Marcos, TX weather station (11 miles away).
6,760 jobs at 733 businesses in Caldwell County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
Nearest hospitals
Source: Hospitals from CMS Hospital General Information (ratings are CMS overall star ratings); straight-line distances.
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.
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Shares ZIP codes with Martindale, Seguin and Kingsbury.
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.