ZIP Codes of Mclennan County, TX

Population & People
Population & People
Total Population
270,919
Household Income
Household Income
Median Income
$73,759
Housing
Housing
Total Housing Units
110,413
Business & Economy
Business & Economy
Total Businesses
5,959
Employment
Employment
Employment Rate
59.96%
Education
Education
Bachelor's Degree+
28.69%
Source: U.S. Census ACS 2024 5-Year Estimates · rolled up across the 32 ZIPs in this county.
Data Last Updated: June 1, 2026
ZIP Codes:32 ZIP Codes (23 Standard, 7 PO Box, 2 Unique) [See All]
Area Code:254
Timezone:Central (GMT -06:00)
Local Time:2:13:59 PM
Population:270,919 [See All]
FIPS:48309
CBSA:Waco, TX
Land Area:1,319 sq mi
Water Area:32 sq mi
Coordinates:31.5445, -97.1550
Quick Link:
https://www.zip-codes.com/county/tx-mclennan.asp
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Sharp income gradient
Wealthiest ZIP earns 4.3× the poorest — $129,917 vs $30,313.
Extreme geographic sprawl
The largest ZIP spans 3631× the smallest by area — 137.6 sq mi down to 0.04.
Striking education divide
Bachelor's share spans 9.7% to 49.4% — a 40-point gap.

Standout ZIPs in this County


Most Populous
Waco · 41,627 people
15.4% of county total
Highest Income
Crawford · $129,917 median
1.8× county average
Largest Land Area
Mcgregor · 137.6 sq mi
Spans the most ground
Fastest Growth
Waco · 66.1% (10-yr)
1,736 → 2,883 residents
Most Educated
Woodway · 49.4% bachelor's+
9,670 of 19,560 adults 25+

Things worth knowing about Mclennan County


270,919 residents live across 32 ZIPs covering 1,319 sq mi, served by 17 distinct USPS-recognized cities.

Population moved from 243,218 to 270,919 from 2014 to 2024 — a +11.4% change. 21 ZIPs gained residents, 3 lost.

The county's wealthiest ZIP 76638 (Crawford, $129,917 median) and poorest ZIP 76701 (Waco, $30,313) are 18.7 miles apart — a 4.3× income gap across local geography.

Median home values vary 3.5× across this county — from $126,200 in 76707 (Waco) to $440,900 in 76638 (Crawford).

Density varies 2842× across the county — from 27 people/sq mi in 76664 (Mart) to 76,069 in 76798 (Waco).

Educational attainment ranges from 9.7% bachelor's+ in 76704 (Waco) to 49.4% in 76712 (Woodway) — the breadth of educational profiles across the area.

Within Texas, this is the #20 most populous of 254 counties and ranks #83 for median household income with the #59 fastest decade growth .

Hosts 2 single-entity Unique ZIPs: 76799Va Regional Office ; and 76797Amer Income Life Ins .

Weighted by population, the typical household earns about $68,535 across the county — reflecting what a typical resident sees, not a simple ZIP average.

28.7% of adults age 25+ hold a bachelor's degree or higher (48,140 of 167,804 reporting).

23 Standard delivery, 7 PO Box only, 2 single-entity Unique ZIPs serve this county.

Stories about Mclennan County


Higher-education hub

1 ZIP in this county where more than 60% of adults 25+ hold a bachelor's degree — typically college campuses, research enclaves, or tech corridors.

Waco
100.0%
2,883 residents

Two counties in one

Median household income spans 4.3× between the wealthiest and poorest ZIPs — a sign of significant intra-county inequality.

Wealthiest ZIP
Crawford
Median income: $129,917
Population: 3,671
Bachelor's+: 38.7%
vs
Poorest ZIP (pop >= 500)
Waco
Median income: $30,313
Population: 1,871
Bachelor's+: 35.5%
For every $1 of household income in 76701, the typical household in 76638 earns $4.29.

All ZIP Codes in Mclennan County


ZIPCityTypePopulationMedian IncomeArea (sq mi)10-yr Growth
76706WacoStandard41,627$41,65673.615.0%
76705WacoStandard31,616$58,236123.47.6%
76712WoodwayStandard29,118$97,90357.917.7%
76708WacoStandard27,790$68,85651.06.7%
76710WacoStandard23,329$58,18612.13.0%
76643HewittStandard16,432$83,5118.418.2%
76707WacoStandard15,879$40,4433.4-3.3%
76657McgregorStandard12,760$97,634137.640.6%
76655LorenaStandard10,603$99,91779.013.4%
76711WacoStandard9,676$53,1853.312.4%
76704WacoStandard7,018$30,3495.6-12.8%
76691WestStandard6,661$85,694100.74.8%
76633China SpringStandard6,268$106,75550.08.8%
76557MoodyStandard5,644$86,056130.527.6%
76638CrawfordStandard3,671$129,91774.215.3%
76524EddyStandard3,668$69,28662.64.8%
76682RieselStandard3,661$84,148114.046.9%
76664MartStandard3,231$74,618120.7-5.3%
76640Elm MottStandard3,089$66,64129.124.5%
76798WacoStandard2,8830.066.1%
76624AxtellStandard2,660$79,62564.526.9%
76701WacoStandard1,871$30,3131.20.3%
76630BrucevilleStandard1,589$83,95016.417.3%
76654LeroyPO Box175$69,5830.033.6%
76684RossPO Box0.0
76715WacoPO Box0.0
76702WacoPO Box0.0
76799WacoUnique0.0
76716WacoPO Box0.0
76703WacoPO Box0.0
76714WacoPO Box0.0
76797WacoUnique0.0

Adjacent & Nearby Counties