What is the largest city in Harris County, TX?

Houston is the largest city or town in Harris County, with about 2,328,253 residents.

How many ZIP codes are in Harris County?

Harris County includes 133 ZIP Code Tabulation Areas, including 77002, 77003, 77004, 77005, 77006.

What is the population of Harris County, TX?

About 4,838,303 people live in Harris County, based on American Community Survey 5-year estimates.

What counties border Harris County?

Harris County borders Fort Bend County, Montgomery County, Brazoria County, Galveston County, Liberty County, Waller County, Chambers County.

Harris County, TX: Cities, ZIP Codes & Local Data

Population

4,838,303

Land area

1,707sq mi

People per sq mi

2,834

ZIP codes

133

Harris County at a glance

Harris County is about 25 times as dense as Texas as a whole.
It is the most populous county in Texas.
Households here earn a median of $74,983 a year, 4% less than the Texas figure of $78,476.
A typical owner-occupied home is valued at $276,600 and median rent is $1,401 a month.
The biggest population centers are Houston (2.3 million), Pasadena (149,433) and Atascocita (99,354).

Local data for Harris County, TX

Counts from official public data

Housing and community stats

Harris County, TX, American Community Survey 2020-2024

Full profile

Median household income

$74,983

Poverty rate

16.3%

Median home value

$276,600

Prices +0.6% in a year

Median rent

$1,401/mo

Homeownership

54.7%

Bachelor's or higher

34.2%

Median age

34.6

Average commute

29.0 min

Largest reported origins and ancestries: Mexican Americans (1,435,623), German Americans (276,866), Irish Americans (195,678).

Home values and rents Income, education and commute

Economy and federal money

Jobs, income, federal spending and pandemic loans

Details

Unemployment rate

4.6%

Sep 2026, -0.3 pts in a year

Average annual pay

$91,491

2,458,604 jobs, 2025

Income per person

$79,991

BEA, 2024

Federal spending

$26B

FY 2026, $5,489 per person

PPP loans

$13.7B

201,805 loans, 1,455,199 jobs reported

Campaign donations

$90.1M

Itemized, 2026 cycle

Economy Federal spending PPP loans

How people get to work

Harris County, TX, workers 16 and older. American Community Survey 5-year estimates

Drove alone70.3%
Carpooled10.7%
Public transit2.0%
Walked1.4%
Bicycle0.3%
Taxi, ride-hailing, motorcycle or other2.3%
Worked from home12.9%

Average one-way commute: 29.0 minutes for people who do not work from home.

Environment and hazard risk

Harris County, TX, from FEMA, NOAA and EPA

Full report

Natural hazard risk

Very High

Top: hurricane

Storm events since 1996

1,636

Most often thunderstorm wind

Flood insurance policies

206,279

16.6% of homes, county

July high / Jan low

93° / 44°F

54.1 inches of rain a year

Hazards, floods and storm history Check a flood zone 244 historic places

Health statistics

Share of adults in Harris County, TX, CDC PLACES estimates

All 40 measures

Obesity

37.3%

U.S. 33.3% +4.0 pts

Diabetes

13.2%

U.S. 12.1% +1.1 pts

Smoking

12.7%

U.S. 12.8% about the same

Uninsured (18-64)

21.3%

U.S. 11.1% +10.2 pts

Cities, towns and ZIP codes in Harris County

Population shown

Frequently asked questions

What is the largest city in Harris County, TX?: Houston is the largest city or town in Harris County, with about 2,328,253 residents.
How many ZIP codes are in Harris County?: Harris County includes 133 ZIP Code Tabulation Areas, including 77002, 77003, 77004, 77005, 77006.
What is the population of Harris County, TX?: About 4,838,303 people live in Harris County, based on American Community Survey 5-year estimates.
What counties border Harris County?: Harris County borders Fort Bend County, Montgomery County, Brazoria County, Galveston County, Liberty County, Waller County, Chambers County.