Harris County, Texas

County seat: Houston · Population 5 million (2025) · 1,707 sq mi

Harris County is the most populous of Texas's 254 counties, with 5,045,026 people (2025 estimate). Its county seat is Houston. It is part of the Gulf Coast region, one of the 12 Texas Comptroller economic regions. The map shows its 34 cities and towns and the 7 neighboring counties.

Map of Harris County, Texas with cities, towns and the county boundary
Harris County, Texas with its cities and towns, unincorporated communities (CDPs) and neighboring counties. Boundaries: U.S. Census Bureau, 2025. Free to use with attribution (CC BY 4.0).

Harris County facts

County seat
Houston
Population (2025 estimate)
5,045,026 +6.7% since 2020
Land area
1,707 sq mi 14th largest of 254
Water area
70 sq mi
Population density
2,955 per sq mi
Established
1836
Named after
John Richardson Harris colonist of Mexican Texas
Largest city
Houston 2,347,346 in the county
Median household income
$74,983
Cities and towns
34 plus 12 CDPs
ZIP codes
143
Time zone
Central
FIPS code
48201

Cities and towns in Harris County

Harris County has 34 incorporated cities, towns and villages. Populations count the people living inside Harris County; cities that cross a county line also list the other counties.

NameTypePopulation 2025Also in
Houston (county seat)City2,347,346Fort Bend, Montgomery and Waller counties
PasadenaCity148,539
BaytownCity81,470Chambers County
La PorteCity37,983
Deer ParkCity34,282
BellaireCity17,434
HumbleCity16,484
South HoustonCity16,407
TomballCity15,768Montgomery County
West University PlaceCity15,158
KatyCity14,913Fort Bend and Waller counties
SeabrookCity13,974Chambers County
WebsterCity12,507
FriendswoodCity10,610Galveston County
Galena ParkCity10,352
Jacinto CityCity9,388
PearlandCity8,219Brazoria and Fort Bend counties
Jersey VillageCity7,729
Missouri CityCity6,027Fort Bend County
Nassau BayCity5,210
Hunters Creek VillageCity4,498
Spring Valley VillageCity4,402
Bunker Hill VillageCity3,896
Taylor Lake VillageCity3,774
Piney Point VillageCity3,141
El LagoCity2,984
League CityCity2,650Galveston County
Hedwig VillageCity2,383
Southside PlaceCity1,916
WallerCity1,590Waller County
ShoreacresCity1,535Chambers County
Hilshire VillageCity843
StaffordCity288Fort Bend County
Morgan's PointCity272Chambers County

Unincorporated communities (CDPs)

Census-designated places are communities without their own city government; the county provides their services.

CommunityPopulationAlso in
Atascocita99,354
Spring68,580
Channelview43,605
Cloverleaf24,063
The Woodlands18,963Montgomery County
Aldine17,167
Mission Bend12,428Fort Bend County
Highlands6,335
Crosby4,617
Cinco Ranch3,799Fort Bend County
Barrett3,273
Sheldon2,208

ZIP codes in Harris County

143 ZIP codes reach into Harris County. ZIP codes ignore county lines, so some also cover a neighboring county.

Population of Harris County, 2020–2025

Harris County grew by 314,618 people (+6.7%) between April 2020 and July 2025: 168,876 more births than deaths and a net gain of 145,776 people from migration.

Year (July 1)Population
20204,734,060
20214,736,539
20224,809,691
20234,896,507
20244,996,331
20255,045,026

Neighboring counties

Printable Harris County map

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Sources

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