Youngest ZIP codes in Limestone County, TX

These are the 11 ZIP codes in Limestone County with the lowest median age, out of 11 with at least 1,000 residents. 76635 (Coolidge, 32.7), 76664 (Mart, 38.4) and 76642 (Groesbeck, 38.9) lead the list. There is no single "best" ZIP code in Limestone County; the right one depends on who you want to reach, so the same ZIP codes are ranked several ways below.

Youngest ZIP codes in Limestone County

RankZIPMailing cityMedian ageResidentsHouseholdsResidential mailboxes
176635Coolidge32.7 ±6.61,392444347
276664Mart38.4 ±4.03,2311,1111,334
376642Groesbeck38.9 ±5.06,3632,2382,725
476673Mount Calm39.0 ±5.81,196391534
576693Wortham40.3 ±1.42,153798779
676667Mexia40.9 ±2.210,4944,0364,346
775846Jewett41.4 ±5.12,7411,089987
876648Hubbard43.0 ±11.42,7771,0371,242
976624Axtell43.5 ±12.22,6601,007958
1076687Thornton51.9 ±7.21,830726697
1176653Kosse58.2 ±5.61,067552447

How we ranked them

Ranked by median age of all residents, lowest first (ACS 5-year estimates, 2020–2024). ZIP codes need at least 1,000 residents to be ranked; 11 of 14 qualify.

Which of these to mail, and why

Younger ZIP codes skew toward renters, students and young families: fitness, quick-service food, apartments, entertainment and first-time-buyer offers.

The top five ZIP codes on this list hold 4,982 households, on 16 carrier routes with 5,719 residential mailboxes. Open any of them on the route map to see each carrier route's own figures before you choose.

Open 76635 on the EDDM route map

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Frequently asked questions

Which ZIP code in Limestone County has the lowest median age?
76635 (Coolidge), at 32.7 (±6.6), among 11 ZIP codes with at least 1,000 residents.
How is this ranking calculated?
Ranked by median age of all residents, lowest first (ACS 5-year estimates, 2020–2024).
Why are some ZIP codes missing?
ZIP codes with fewer than 1,000 residents are left out because their survey estimates swing too much to rank, and so are ZIP codes where the Census Bureau did not publish this figure.

This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.