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US ZIP Code Profile

ZIP Code 77345
Kingwood, Texas

ZIP code 77345 is in Kingwood, located in Harris County, Texas, within the Houston-The Woodlands-Sugar Land metro area. Its 2020 Census population was 27,258. The estimated median adjusted gross income per tax return is $102,913, and about 25% of filers report $200,000 or more.

2020 Population
27,258
Census ZCTA
County
Harris
FIPS 48201
Median income (est.)
$102,913
IRS SOI 2022
Land Area
8.485 mi²
+ 2.147 mi² water

01Location & Geography

Authoritative geographic identifiers from the U.S. Census Bureau, ANSI, and FIPS standards.

Primary CityKingwood, TX
CountyHarris County (FIPS 48201)
StateTexas (FIPS 48)
Metro Area (MSA)Houston-The Woodlands-Sugar Land, TX Metro Area (26420)
Census Region / DivisionSouth Region · West South Central Division
Coordinates30.053104, -95.15794
Land / Water Area8.485 mi² land · 2.147 mi² water

02Income & Economics

Distribution of the 12,000 individual tax returns filed in 77345 by adjusted gross income bracket (IRS SOI, 2022).

< $25K
19.8%
$25K–$50K
11.4%
$50K–$75K
10.1%
$75K–$100K
8.0%
$100K–$200K
25.8%
$200K+
25.0%
The $200,000+ bracket accounts for 66% of 77345's total adjusted gross income, from 25% of returns — a concentration that drives the gap between the median ($102,913) and the average.
Estimated median = median adjusted gross income per tax return, interpolated from IRS SOI brackets. Differs from U.S. Census household income.

03Income Over Time

Year-over-year change in 77345's IRS income metrics, 2020–2022.

Median income (2021→2022)
$102,913
▲ 2.6%
Filers earning $200K+
25.0%
▲ 1.8 pt
Total filers
12,000
▲ 1.5%
GET /zipc/v2/zipcodes/77345/soi?year=… $93K 2020 $100K 2021 $103K 2022
Median = adjusted gross income per return, interpolated from IRS SOI brackets. Figures are nominal (not inflation-adjusted).

04Population Trend

Decennial U.S. Census population for the 77345 ZCTA.

2000
22,622
 
2010
26,122
▲ +15.5%
2020
27,258
▲ +4.3%

05USPS Postal Details

Delivery and facility attributes from the monthly USPS dataset.

ZIP ClassificationNon-Unique Zip
Facility TypeBranch
Carrier Route SortB
USPS Finance Number484190
City AliasesHumble, Kingwood

06Frequently Asked Questions

What county is ZIP code 77345 in?

ZIP code 77345 is in Harris County, Texas (county FIPS code 48201).

What city is ZIP code 77345?

The primary USPS city for 77345 is Kingwood, TX.

What metro area (MSA) is 77345 in?

77345 is part of the Houston-The Woodlands-Sugar Land, TX Metro Area (MSA code 26420).

What is the population of ZIP code 77345?

The 2020 Census population of 77345 was 27,258 residents.

What is the median income in ZIP code 77345?

Based on IRS Statistics of Income data, the estimated median adjusted gross income per tax return in 77345 is about $102,913, with around 25% of filers reporting $200,000 or more. Note that adjusted gross income is a tax measure and differs from U.S. Census household income.