Which ZIP code in Austin has the fastest population growth?

78738 (Austin), at 94.0%, among 44 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.

Fastest-growing ZIP codes in Austin, TX

These are the 25 ZIP codes in Austin, TX with the fastest population growth, out of 44 with at least 1,000 residents. 78738 (Austin, 94.0%), 78737 (Austin, 57.4%) and 78725 (Austin, 26.9%) lead the list. There is no single "best" ZIP code in Austin; the right one depends on who you want to reach, so the same ZIP codes are ranked several ways below.

Fastest-growing ZIP codes in Austin

Rank	ZIP	Mailing city	Population change	Residents	Households	Residential mailboxes
1	78738	Austin	94.0%	31,019	12,063	14,520
2	78737	Austin	57.4%	27,023	9,145	9,330
3	78725	Austin	26.9%	10,746	4,349	4,111
4	78728	Austin	26.8%	26,777	13,169	14,485
5	78754	Austin	23.7%	32,690	13,345	15,436
6	78717	Austin	21.5%	37,262	14,939	18,089
7	78724	Austin	20.9%	31,103	10,379	14,823
8	78732	Austin	18.6%	21,087	7,580	6,856
9	78735	Austin	15.9%	20,996	9,791	11,092
10	78703	Austin	15.1%	23,483	11,375	11,625
11	78734	Austin	13.8%	22,145	9,881	10,877
12	78752	Austin	11.7%	23,317	11,160	11,558
13	78702	Austin	9.8%	25,985	13,759	16,789
14	78701	Austin	9.0%	11,824	7,949	13,153
15	78748	Austin	7.7%	55,631	25,231	26,891
16	78723	Austin	6.7%	38,129	16,669	19,936
17	78617	Del Valle	6.3%	30,756	8,950	11,015
18	78729	Austin	6.3%	30,460	14,500	15,015
19	78756	Austin	5.8%	9,197	4,637	4,717
20	78747	Austin	5.5%	22,180	9,096	12,677
21	78719	Austin	5.1%	1,796	585	520
22	78751	Austin	4.7%	16,961	9,917	10,137
23	78704	Austin	4.0%	50,688	27,940	29,982
24	78726	Austin	3.3%	14,506	6,453	7,179
25	78744	Austin	1.7%	50,986	20,976	26,491

How we ranked them

Ranked by the change in ACS population estimates between the 2015–2019 and 2020–2024 releases. Both are 5-year averages, and ZIP code areas were redrawn for 2020, so a large change can partly reflect a boundary change. Both periods must have at least 1,000 residents. ZIP codes need at least 1,000 residents to be ranked; 44 of 46 qualify.

Which of these to mail, and why

Growing ZIP codes add households every year, which means new homes, new routes and customers without a go-to provider yet. Check the route map: new subdivisions can appear as new carrier routes.

The top five ZIP codes on this list hold 52,071 households, on 73 carrier routes with 57,882 residential mailboxes. Open any of them on the route map to see each carrier route's own figures before you choose.

Open 78738 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 has the fastest population growth?: 78738 (Austin), at 94.0%, among 44 ZIP codes with at least 1,000 residents.
How is this ranking calculated?: Ranked by the change in ACS population estimates between the 2015–2019 and 2020–2024 releases. Both are 5-year averages, and ZIP code areas were redrawn for 2020, so a large change can partly reflect a boundary change. Both periods must have 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.

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