Which ZIP code in the Austin area has the highest median age?

78633 (Georgetown), at 67.3 (±0.8), among 83 ZIP codes with at least 1,000 residents.

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.

Oldest ZIP codes in the Austin Area

These are the 25 ZIP codes in the Austin area with the highest median age, out of 83 with at least 1,000 residents. 78633 (Georgetown, 67.3), 78645 (Leander, 54.4) and 78676 (Wimberley, 50.3) lead the list. There is no single "best" ZIP code in the Austin area; the right one depends on who you want to reach, so the same ZIP codes are ranked several ways below.

Oldest ZIP codes in the Austin area

Rank	ZIP	Mailing city	Median age	Residents	Households	Residential mailboxes
1	78633	Georgetown	67.3 ±0.8	29,309	14,245	18,369
2	78645	Leander	54.4 ±1.8	15,256	7,048	8,763
3	78676	Wimberley	50.3 ±4.7	15,822	7,005	6,961
4	78953	Rosanky	49.6 ±13.9	1,089	575	505
5	78734	Austin	49.0 ±2.9	22,145	9,881	10,877
6	78659	Paige	48.0 ±9.9	2,660	1,098	1,559
7	78669	Spicewood	47.0 ±2.8	12,592	5,056	6,268
8	78650	Mc Dade	46.6 ±12.7	2,409	759	618
9	78662	Red Rock	46.5 ±9.3	3,015	1,381	1,060
10	78719	Austin	45.5 ±5.1	1,796	585	520
11	78619	Driftwood	44.8 ±8.5	6,693	2,393	2,500
12	78655	Martindale	44.6 ±15.0	3,730	1,388	919
13	78746	Austin	44.0 ±1.4	28,256	11,202	12,205
14	78648	Luling	43.9 ±5.6	7,863	3,274	3,344
15	78733	Austin	43.7 ±1.6	9,029	3,171	3,393
16	78738	Austin	43.4 ±1.1	31,019	12,063	14,520
17	76530	Granger	43.3 ±10.8	2,598	959	969
18	78736	Austin	42.9 ±5.0	9,651	4,443	4,917
19	78730	Austin	42.9 ±5.2	9,142	4,090	4,400
20	78620	Dripping Springs	42.7 ±1.6	22,860	8,276	10,947
21	78731	Austin	42.3 ±2.1	27,507	14,343	14,270
22	76574	Taylor	42.2 ±2.6	20,242	7,752	8,408
23	78701	Austin	42.0 ±3.5	11,824	7,949	13,153
24	78957	Smithville	41.8 ±7.0	10,543	4,198	4,382
25	78652	Manchaca	41.8 ±3.8	5,287	1,869	3,196

How we ranked them

Ranked by median age of all residents, highest first (ACS 5-year estimates, 2020–2024). ZIP codes need at least 1,000 residents to be ranked; 83 of 89 qualify.

Which of these to mail, and why

Older ZIP codes respond to health care, hearing and vision, Medicare plans, home safety, estate planning and services that come to the door.

The top five ZIP codes on this list hold 38,754 households, on 72 carrier routes with 45,475 residential mailboxes. Open any of them on the route map to see each carrier route's own figures before you choose.

Open 78633 on the EDDM route map

More rankings

Businesses that mail these ZIP codes

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Frequently asked questions

Which ZIP code in the Austin area has the highest median age?: 78633 (Georgetown), at 67.3 (±0.8), among 83 ZIP codes with at least 1,000 residents.
How is this ranking calculated?: Ranked by median age of all residents, highest 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.