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US ZIP Code Profile

ZIP Code 76633
China Spring, Texas

ZIP code 76633 is in China Spring, located in Mclennan County, Texas, within the Waco metro area. Its 2020 Census population was 5,665. The estimated median adjusted gross income per tax return is $63,816, and about 12% of filers report $200,000 or more.

2020 Population
5,665
Census ZCTA
County
Mclennan
FIPS 48309
Median income (est.)
$63,816
IRS SOI 2022
Land Area
48.289 mi²
+ 0.643 mi² water

01Location & Geography

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

Primary CityChina Spring, TX
CountyMclennan County (FIPS 48309)
StateTexas (FIPS 48)
Metro Area (MSA)Waco, TX Metro Area (47380)
Census Region / DivisionSouth Region · West South Central Division
Coordinates31.695107, -97.32885
Land / Water Area48.289 mi² land · 0.643 mi² water

02Income & Economics

Distribution of the 2,820 individual tax returns filed in 76633 by adjusted gross income bracket (IRS SOI, 2022).

< $25K
23.4%
$25K–$50K
19.1%
$50K–$75K
13.5%
$75K–$100K
9.6%
$100K–$200K
22.3%
$200K+
12.1%
The $200,000+ bracket accounts for 47% of 76633's total adjusted gross income, from 12% of returns — a concentration that drives the gap between the median ($63,816) 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 76633's IRS income metrics, 2020–2022.

Median income (2021→2022)
$63,816
▲ 6.6%
Filers earning $200K+
12.1%
▲ 1.2 pt
Total filers
2,820
▲ 6.0%
GET /zipc/v2/zipcodes/76633/soi?year=… $56K 2020 $60K 2021 $64K 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 76633 ZCTA.

2000
3,579
 
2010
4,973
▲ +38.9%
2020
5,665
▲ +13.9%

05USPS Postal Details

Delivery and facility attributes from the monthly USPS dataset.

ZIP ClassificationNon-Unique Zip
Facility TypePost Office
Carrier Route SortD
USPS Finance Number481710
City AliasesChina Spring

06Frequently Asked Questions

What county is ZIP code 76633 in?

ZIP code 76633 is in Mclennan County, Texas (county FIPS code 48309).

What city is ZIP code 76633?

The primary USPS city for 76633 is China Spring, TX.

What metro area (MSA) is 76633 in?

76633 is part of the Waco, TX Metro Area (MSA code 47380).

What is the population of ZIP code 76633?

The 2020 Census population of 76633 was 5,665 residents.

What is the median income in ZIP code 76633?

Based on IRS Statistics of Income data, the estimated median adjusted gross income per tax return in 76633 is about $63,816, with around 12% of filers reporting $200,000 or more. Note that adjusted gross income is a tax measure and differs from U.S. Census household income.