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ZIP Code 78123, Texas

ZIP Code 78123 profile, demographic data, and geographic information.

ZCTA5 78123 is a 5-digit ZIP Code area located in Guadalupe County, Texas. As of official census estimates, it has a reported population of 2,127. The land area covers 3.74 sq mi. [1]

Demographics & Population

Demographic Metric Estimate / Count Margin of Error Survey Period / Source
Total Population 2,127 ±705 2020-2024 / Census ACS 5-Year 2024
Median Age 48.9 yrs ±21 2020-2024 / Census ACS 5-Year 2024
Total Households 878 ±248 2020-2024 / Census ACS 5-Year 2024
Source: U.S. Census Bureau (PEP, ACS 5-Year).

Housing & Real Estate Profile

Housing Metric Estimate / Value Margin of Error
Total Housing Units 1,064 ±251
Occupied Housing Units 878 ±248
Vacant Housing Units 186 ±86
Median Home Value $238,500 ±$151,959
Median Gross Rent Suppressed —
Source: U.S. Census Bureau ACS 5-Year (2020-2024).

Economy & Workforce

Economic Metric Estimate / Value Margin of Error
Median Household Income $97,553 ±$43,437
Per Capita Income $46,866 ±$9,842
Poverty Rate 10.3% ±6%
Population Below Poverty Level 218 ±146
Unemployment Rate 5.9% ±5%
Civilian Labor Force, Employed 1,021 ±425
Broadband Internet Rate 97.8% ±5.3%
Source: U.S. Census Bureau ACS 5-Year (2020-2024).

Local Government & Public Administration

Authoritative general-purpose local government units serving this area U.S. Census Bureau GUS (2026) / GMAF
Government Unit Unit Type Jurisdiction Role Contact / Address
GUS Population: 195,166 (2024)
ID: 175888
County Official County Government
Contact: GREGORY WEBB
310 IH 10 W, SEGUIN TX 78155

Education

Listing 10 local institutions (NCES 2024-2025) External reference via K12Guides
Institution Type Grades Location
Alternative School Nearby 09-12 SCHERTZ, TX
Regular School Nearby PK SEGUIN, TX
Regular School Nearby 05-06 CIBOLO, TX
Regular School Nearby KG-05 SAN MARCOS, TX
Alternative School Nearby 09-12 CONVERSE, TX
Regular School Nearby 06-08 SEGUIN, TX
Regular School Nearby 09-12 CIBOLO, TX
Regular School Nearby 09-12 NEW BRAUNFELS, TX
Regular School Nearby 06-08 NEW BRAUNFELS, TX
Regular School Nearby KG-05 NEW BRAUNFELS, TX
Source: k12guides.com.

Community Facilities & Infrastructure

Displaying 10 civic institutions across 2 datasets queried CMS • IPEDS • IMLS
Facility Name Category Relationship Address / Location Contact
Texas Lutheran University
College 4.0 mi away 1000 W. Court St, Seguin, TX, 78155-5999
8303728000
SEGUIN PUBLIC LIBRARY
Library 5.0 mi away 313 W NOLTE ST, SEGUIN, TX, 78155
(830) 401-2422
Seguin Beauty School-Seguin
College Vocational 5.1 mi away 102 E Court St, Seguin, TX, 78155
8303720935
MARION COMMUNITY LIBRARY
Library 6.5 mi away 201 S CENTER ST, MARION, TX, 78124
(830) 420-4022
William Edge Institute
College Vocational 7.4 mi away 651 North Business IH 35, Suite 330, New Braunfels, TX, 78130-8216
8303874094
WESTSIDE COMMUNITY CENTER LIBRARY
Library 8.3 mi away 2932 S IH 35, NEW BRAUNFELS, TX, 78130
(830) 221-4301
College of Biomedical Equipment Technology
College 15.3 mi away 105 Windy Meadows, Bldg. 2, Suite 201, Schertz, TX, 78154
2102331102
NEW BRAUNFELS PUBLIC LIBRARY
Library 8.7 mi away 700 E COMMON ST, NEW BRAUNFELS, TX, 78130
(830) 221-4300
Northeast Lakeview College
College 17.6 mi away 1201 Kitty Hawk Rd, Universal City, TX, 78145
2104865000
RIOMOBILE
Library 8.7 mi away 700 E COMMON ST, NEW BRAUNFELS, TX, 78130
(830) 221-4318
Distances calculated from authoritative source coordinates. Source: CMS, IMLS, NCES IPEDS.

Climate & Weather Observations

NOAA Monthly Climate Normals

Observation Station: Climate data reflects NOAA 1991–2020 standard normals recorded at AUSTIN SAN ANTONIO, TX US, located 6.8 miles from ZCTA5 78123. Local microclimates, topography, and elevation may cause municipal conditions to differ.
Month High (°F) Low (°F) Mean (°F) Precip (in) Snow (in)
January 64.2° 40.3° 52.2° 2.14" —
February 68.3° 43.8° 56.0° 1.72" —
March 74.9° 50.6° 62.8° 2.49" —
April 81.5° 58.0° 69.8° 2.00" —
May 87.7° 65.5° 76.6° 3.63" —
June 93.4° 71.4° 82.4° 3.44" —
July 96.3° 72.7° 84.5° 2.21" —
August 97.5° 72.7° 85.1° 2.01" —
September 91.8° 67.9° 79.9° 3.45" —
October 83.6° 58.9° 71.3° 3.30" —
November 72.9° 49.1° 61.0° 2.46" —
December 65.4° 41.6° 53.5° 2.42" —
Source: NOAA U.S. Climate Normals (1991–2020).

Local Weather Forecast

Weather forecast data is currently unavailable in the local cache.

Nearby Cities & Communities

Listing adjacent communities by spatial proximity (miles) Proximity discovery
Community Name Classification Distance Population
McQueeney CDP CDP 0.6 mi —
Seguin city City 4.4 mi —
Lake Dunlap CDP CDP 5.0 mi —
Geronimo CDP CDP 6.3 mi —
Marion city City 6.6 mi —
Santa Clara city City 7.3 mi —

Sources & Data Provenance

  1. Geographic Classification & Identifiers: U.S. Census Bureau Gazetteer (2026) and TIGER/Line Shapefiles. GEOID: 78123. • Official Source Dataset →
  2. Socioeconomic & Housing Metrics: U.S. Census Bureau American Community Survey (ACS) 5-year estimates and Population Estimates Program (PEP). Margin of Error (MOE) intervals are reported where published; suppressed values are never estimated or replaced with false zeros.
  3. Civic Directory Datasets: Centers for Medicare & Medicaid Services (CMS Hospital Directory), National Center for Education Statistics (NCES IPEDS Postsecondary Directory), and Institute of Museum and Library Services (IMLS Public Libraries Survey). Airport landing facilities are provided by airport-data.com.
  4. Weather & Climate Observations: National Oceanic and Atmospheric Administration (NOAA) U.S. Climate Normals 1991–2020 and National Weather Service (NWS) point forecasts.