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US ZIP Code Profile

ZIP Code 76640
Elm Mott, Texas

ZIP code 76640 is in Elm Mott, located in Mclennan County, Texas, within the Waco metro area. Its 2020 Census population was 3,063. The estimated median adjusted gross income per tax return is $40,549, and about 3% of filers report $200,000 or more.

2020 Population
3,063
Census ZCTA
County
Mclennan
FIPS 48309
Median income (est.)
$40,549
IRS SOI 2022
Land Area
28.434 mi²
+ 0.336 mi² water

01Location & Geography

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

Primary CityElm Mott, TX
CountyMclennan County (FIPS 48309)
StateTexas (FIPS 48)
Metro Area (MSA)Waco, TX Metro Area (47380)
Census Region / DivisionSouth Region · West South Central Division
Coordinates31.696619, -97.07371
Land / Water Area28.434 mi² land · 0.336 mi² water

02Income & Economics

Distribution of the 1,430 individual tax returns filed in 76640 by adjusted gross income bracket (IRS SOI, 2022).

< $25K
32.2%
$25K–$50K
28.7%
$50K–$75K
14.7%
$75K–$100K
9.1%
$100K–$200K
12.6%
$200K+
2.8%
The $200,000+ bracket accounts for 33% of 76640's total adjusted gross income, from 3% of returns — a concentration that drives the gap between the median ($40,549) 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 76640's IRS income metrics, 2020–2022.

Median income (2021→2022)
$40,549
▲ 7.3%
Filers earning $200K+
2.8%
▲ 0.7 pt
Total filers
1,430
▼ 0.7%
GET /zipc/v2/zipcodes/76640/soi?year=… $35K 2020 $38K 2021 $41K 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 76640 ZCTA.

2000
3,113
 
2010
3,005
▼ -3.5%
2020
3,063
▲ +1.9%

05USPS Postal Details

Delivery and facility attributes from the monthly USPS dataset.

ZIP ClassificationNon-Unique Zip
Facility TypePost Office
Carrier Route SortC
USPS Finance Number482830
City AliasesElm Mott

06Frequently Asked Questions

What county is ZIP code 76640 in?

ZIP code 76640 is in Mclennan County, Texas (county FIPS code 48309).

What city is ZIP code 76640?

The primary USPS city for 76640 is Elm Mott, TX.

What metro area (MSA) is 76640 in?

76640 is part of the Waco, TX Metro Area (MSA code 47380).

What is the population of ZIP code 76640?

The 2020 Census population of 76640 was 3,063 residents.

What is the median income in ZIP code 76640?

Based on IRS Statistics of Income data, the estimated median adjusted gross income per tax return in 76640 is about $40,549, with around 3% of filers reporting $200,000 or more. Note that adjusted gross income is a tax measure and differs from U.S. Census household income.