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Sebastian, Texas

Census designated place in Willacy County, Texas · ZIP 78594

  • Willacy County
  • Census data · ACS 2019-2023
Join SebastianAsk SebastianBusinessesPeople
  • 1,144 (2019-2023 estimate)Population
  • 475Households
  • $24,395Median household income
  • $37,600Median home value
  • 1ZIP codes

About Sebastian

This page shows only what has been published about Sebastian: Census facts with their sources first, then its businesses, jobs, events, people in public roles, housing and questions as they are added. Nothing here is written by the town government.

Town intelligenceOfficial sources, refreshed yearly

Population, 2000 to 2020−9.7%
1.6k1.7k1.8k1.9k2k2000: 1,86420002010: 1,91720102020: 1,68420201,8641,684
Population of Sebastian at each census
CensusPopulation
20001,864
20101,917
20201,684

As counted at each census, within the boundaries the area had then; the current estimate is in the glance card.

Sources: Census 2000 Summary File 1: total population, place level, state 48, retrieved November 14, 2026; Census 2010 Summary File 1: total population, place level, state 48, retrieved November 14, 2026; Census 2020 Redistricting Data (P.L. 94-171): total population, place level, state 48, retrieved November 14, 2026.

Household income in Sebastian
Under $50k67%
$50k to $100k31.3%
$100k to $150k1.7%
$150k to $200k0%
$200k and over0%

Median household income $24,395 · Share of households by income, American Community Survey 5-year 2019-2023, table S1901.

Source: American Community Survey 5-year subject table S1901 (household income) 2019–2023, place level, state 48, retrieved November 14, 2026.

Housing tenure in Sebastian
Owner occupied
342 units
Renter occupied
133 units
Vacancy rate
7.8%

Occupied housing units by tenure and the share of all units vacant, American Community Survey 5-year 2019-2023, table DP04.

Source: American Community Survey 5-year data profile 2019–2023, place level, state 48, retrieved November 14, 2026.

Sebastian compared with its county and state
Sebastian compared with its county and state, American Community Survey 2019-2023
MeasureSebastianWillacy CountyTexas
Population1,14420,21829,640,343
Median household income$24,395$45,645$76,292
Median age42.933.735.5
Median home value$37,600$60,800$260,400
Bachelor’s degree or higher7.2%12.2%33.1%
Foreign-born residents20.3%12.5%17.2%
Owner-occupied homes72.0%72.4%62.6%
Mean commute to work37.6 minutes19.9 minutes26.7 minutes

Source: American Community Survey 5-year data profile 2019–2023, place level, state 48, retrieved November 14, 2026.

CommunityRules and moderation

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Events in SebastianAll events

Coming up in SebastianAll events

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Schools

No public school is listed for Sebastian: either the NCES directory for Texas is not loaded yet, or no school's address falls inside Sebastian’s boundary. Schools in neighbouring towns are on their pages.

Legislative districts

Legislative districts for Sebastian3
Congressional and state legislative districts for Sebastian
ChamberDistrict
U.S. House of RepresentativesCongressional District 34 (TX-34)
State legislature, lower chamberState House District 37
State legislature, upper chamberState Senate District 27

Boundaries from the Census Bureau’s TIGER/Line district files, matched to Sebastian’s own boundary. Who holds each seat appears on the People page once the official records are approved.

Sources: Census cartographic boundaries 2025: congressional districts, 119th Congress, retrieved November 14, 2026; Census cartographic boundaries 2025: state legislative districts, upper chamber, state 48, retrieved November 14, 2026; Census cartographic boundaries 2025: state legislative districts, lower chamber, state 48, retrieved November 14, 2026.

Frequently asked about SebastianPromoted from questions people asked

No question about Sebastian has been asked often enough to publish an answer yet. Ask Sebastian and the answer, once a person checks it, appears here.

Nearby towns

Other towns in Willacy County

All towns in Willacy County