Richest ZIP codes in Austin County, TX

These are the 6 ZIP codes in Austin County with the highest median household income, out of 6 with at least 1,000 residents. 78950 (New Ulm, $91,354), 77418 (Bellville, $90,611) and 77426 (Chappell Hill, $80,446) lead the list. There is no single "best" ZIP code in Austin County; the right one depends on who you want to reach, so the same ZIP codes are ranked several ways below.

Richest ZIP codes in Austin County

RankZIPMailing cityMedian household incomeResidentsHouseholdsResidential mailboxes
178950New Ulm$91,354 ±$31,5632,3009801,190
277418Bellville$90,611 ±$18,06510,1713,8864,533
377426Chappell Hill$80,446 ±$60,2422,0078291,033
477474Sealy$75,272 ±$9,68715,1465,8616,614
578933Cat Spring$68,444 ±$16,0731,395506777
677485Wallis$51,742 ±$21,2354,3781,7141,338

How we ranked them

Ranked by median household income (ACS 5-year estimates, 2020–2024). The Census Bureau caps published medians at $250,000; ZIP codes at the cap are shown as $250,000+ and ordered by population. ZIP codes need at least 1,000 residents to be ranked; 6 of 9 qualify.

Which of these to mail, and why

Higher-income ZIP codes suit offers with a bigger ticket: remodeling, pools, roofing, financial planning, private schools, premium dining. A median describes the middle household, not every door, so the routes inside each ZIP still vary.

The top five ZIP codes on this list hold 12,062 households, on 24 carrier routes with 14,147 residential mailboxes. Open any of them on the route map to see each carrier route's own figures before you choose.

Open 78950 on the EDDM route map

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Businesses that mail these ZIP codes

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Frequently asked questions

Which ZIP code in Austin County has the highest median household income?
78950 (New Ulm), at $91,354 (±$31,563), among 6 ZIP codes with at least 1,000 residents.
How is this ranking calculated?
Ranked by median household income (ACS 5-year estimates, 2020–2024). The Census Bureau caps published medians at $250,000; ZIP codes at the cap are shown as $250,000+ and ordered by population.
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.