County Maps US

Guadalupe County, Texas

A county in Texas, ranked 29 of 254 by population.

CountyFIPS 48187

Within Texas
Guadalupe County, highlighted, with the areas around it. Boundaries generalised from the 2025 Census cartographic boundary file; neighbour fills carry no data. The dot marks Seguin, the county seat, located via the 2025 Census Gazetteer.

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Population
201,111
+27,389 (+15.8%) since 2020
Land area
711.3
square miles. A further 0.5% of the total area is water
Population density
283
people per square mile, computed rather than published
County seat
Seguin
Seat of county government.
Established
1846
179 years ago
Largest city
Seguin city
Population 41,048.

Sources: US Census Bureau, Population Estimates Program, Vintage 2025 Population Estimates, released 26 March 2026; US Census Bureau, Gazetteer Files, 2025 Gazetteer Files, released 10 September 2025; Wikidata (CC0), Wikidata. Retrieved 30 August 2026.

Satellite view

Aerial imagery of Guadalupe County with its boundary drawn on top. A map shows you the shape; this shows you what is inside it, and which side of the line a place falls on.

Aerial view of Guadalupe County, Texas from the USGS National Map, with its boundary outlined
Imagery: USGS National Map, USGS Imagery Only, public domain, requested from USGS by your browser when you reach this point on the page, at 800 by 680 pixels. The boundary is the 2025 Census cartographic boundary file, reprojected to Web Mercator to match the imagery. You can also open the USGS National Map viewer.

Where Guadalupe County ranks

Position among the 254 counties of Texas, and among all 3,144 US counties and county-equivalents. Computed from the figures on this page.

MeasureValueIn TexasNationally
Population201,11129th of 254357th of 3,144
Land area711.3 sq mi212th of 2541,289th of 3,144
Population density283 per sq mi26th of 254460th of 3,144
Median household income$92,37520th of 254261st of 3,143

Full data for Guadalupe County

Every figure below is attributed to the Census Bureau product it came from, with the vintage of that product.
MeasureValueSource and vintage
Population201,111Vintage 2025 Population Estimates
Population in 2020173,722Vintage 2025 Population Estimates
2020 estimates base?172,729Vintage 2025 Population Estimates
Land area711.3 sq mi2025 Gazetteer Files
Water area3.5 sq mi2025 Gazetteer Files
Total area714.8 sq mi2025 Gazetteer Files
Population density?283 per sq miComputed: Vintage 2025 estimates divided by 2025 Gazetteer land area
Median household income$92,375American Community Survey 2020-2024 5-Year Estimates
Median home value$304,400American Community Survey 2020-2024 5-Year Estimates
Median age37.6American Community Survey 2020-2024 5-Year Estimates
Households65,424American Community Survey 2020-2024 5-Year Estimates
Housing units69,700American Community Survey 2020-2024 5-Year Estimates

Sources: US Census Bureau, Population Estimates Program, Vintage 2025 Population Estimates, released 26 March 2026; US Census Bureau, Gazetteer Files, 2025 Gazetteer Files, released 10 September 2025; US Census Bureau, American Community Survey, American Community Survey 2020-2024 5-Year Estimates, released 29 January 2026. Population density is computed here, not published: it divides the Vintage 2025 population estimate by the 2025 Gazetteer land area, which are two different Census products. Retrieved 30 August 2026.

How the population changed

The Census Bureau publishes the components behind an estimate, not just the total. For the year to July 2025:

Births minus deaths
+625
2,058 births, 1,433 deaths
Net migration
+4,855
More people moved in than moved out.

Source: US Census Bureau, Population Estimates Program, Vintage 2025 Population Estimates, released 26 March 2026. Retrieved 30 August 2026.

The 6 areas bordering Guadalupe County

Ordered by the length of the border actually shared, which the Census Bureau publishes in its county adjacency file and which no other county reference presents.

Bordering areaStateShared borderPopulation
Caldwell CountyTexas43 mi55,150
Bexar CountyTexas32 mi2,160,088
Wilson CountyTexas24 mi56,139
Gonzales CountyTexas23 mi20,159
Comal CountyTexas22 mi209,166
Hays CountyTexas10 mi304,390

Source: US Census Bureau, County Adjacency File, 2025 County Adjacency File, released 15 September 2025. Retrieved 30 August 2026.

All 254 counties of Texas

Open the interactive Texas county map, or jump straight to any of them.

Data on this page last rebuilt 30 August 2026. How these figures are produced.