Town guide

Port O'Connor, Texas

Port O'Connor is a community in Calhoun County, Texas, home to about 620 people across 4.0 square miles. Its ZIP code is 77982.

Homes sold for a median of $265 per square foot in the three months ending August 2026, a buyer’s market.

Population620155 per sq mi
Median home value$415,300Census, as estimated by owners
Price per sq ft$265Sold homes, 3 months to August 2026
Sold over asking4%Latest 3 months

ZIP codes in Port O'Connor

1 ZIP code

Each card is that ZIP code’s whole market, including any part outside Port O'Connor. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology

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Around Port O'Connor

Distances

Nearest major airportWilliam P. Hobby Airport (HOU)107 miles away
Closer regional airportVictoria Regional Airport (VCT)42 miles away
Nearest city of 250,000+Corpus Christi, TX67 miles away
Nearest city of 1 million+Houston, TX111 miles away

Straight-line distances from the center of Port O'Connor; driving is longer.

Source: Airports from OurAirports (scheduled passenger service); city centers and populations from the U.S. Census Bureau.

Who represents Port O'Connor

Source: Members of Congress from the congress-legislators project; districts from the Census Bureau’s relationship files; governor and mayor from Wikidata.

Population over time

Port O'Connor had 954 residents in the 2020 census, down 24% since 2010.

It’s the 1195th largest of 1,778 towns in Texas by population.

Calhoun County grew from 2,395 residents in 1900 to 20,106 in 2020.

Port O'Connor population by census2010: 1,253, 2020: 9541,25320109542020

Calhoun County, 1900–2020

Calhoun County population, 1900 to 20201900: 2,395, 1910: 3,635, 1920: 4,700, 1930: 5,385, 1940: 5,911, 1950: 9,222, 1960: 16,592, 1970: 17,831, 1980: 19,574, 1990: 19,053, 2000: 20,647, 2010: 21,381, 2020: 20,1062K’00’105K’20’306K’40’5017K’60’7020K’80’9021K’00’1020K’20

Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).

Weather by month

Average highs peak around 92°F in summer, and winter lows average 46°F. About 41.5 inches of rain and melted snow fall in a typical year.

Average high and low temperature and precipitation by month near Port O'ConnorJan: high 64°F, low 46°F, 3.1 in; Feb: high 68°F, low 49°F, 1.8 in; Mar: high 73°F, low 57°F, 3.2 in; Apr: high 78°F, low 63°F, 2.6 in; May: high 84°F, low 71°F, 4.3 in; Jun: high 89°F, low 76°F, 4.9 in; Jul: high 91°F, low 78°F, 3.2 in; Aug: high 92°F, low 78°F, 3.4 in; Sep: high 89°F, low 73°F, 4.8 in; Oct: high 83°F, low 65°F, 3.7 in; Nov: high 74°F, low 55°F, 3.6 in; Dec: high 67°F, low 48°F, 2.9 in64°46°Jan3.168°49°Feb1.873°57°Mar3.278°63°Apr2.684°71°May4.389°76°Jun4.991°78°Jul3.292°78°Aug3.489°73°Sep4.883°65°Oct3.774°55°Nov3.667°48°Dec2.9Rain and melted snow, inches

Source: NOAA 1991–2020 climate normals, Pt Comfort, TX weather station (17 miles away).

Jobs in Calhoun County

9,399 jobs at 451 businesses in Calhoun County. The biggest industries by employees:

Largest industries in Calhoun CountyManufacturing: 3,697 jobs; Retail trade: 1,093 jobs; Health care and social assistance: 903 jobs; Hotels and restaurants: 773 jobs; Administrative and support: 592 jobs; Construction: 562 jobs; Professional services: 464 jobs; Other services: 279 jobsManufacturing 39% Retail trade 12% Health care and social assistance 10% Hotels and restaurants 8% Administrative and support 6% Construction 6% Professional services 5% Other services 3%

Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).

Health care

1 doctors and other health care providers list an office in Port O'Connor.

Nearest hospitals

  • Memorial Medical CenterCritical access hospital · emergency room · CMS rating 4 of 5 · Port Lavaca17.2 miles
  • Palacios Community Medical CenterCritical access hospital · emergency room · Palacios22.0 miles
  • Matagorda Regional Medical CenterGeneral hospital · emergency room · CMS rating 5 of 5 · Bay City38.9 miles

Providers with an office here

Physical and occupational therapists1

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.

Schools in Port O'Connor

Public schools here are run by Calhoun County ISD. Check each district’s attendance zones for a specific address.

Public schools (1)
SchoolGradesStudentsTypeDistance
Port O Connor SchoolPort O'ConnorPre-K–564Public0.4 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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Where Port O'Connor is

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Towns near Port O'Connor

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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.