Which ZIP code in Hamilton County has the fastest population growth?

37408 (Chattanooga), at 103.4%, among 29 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 Hamilton County, TN

These are the 25 ZIP codes in Hamilton County with the fastest population growth, out of 29 with at least 1,000 residents. 37408 (Chattanooga, 103.4%), 37341 (Harrison, 33.7%) and 37409 (Chattanooga, 23.3%) lead the list. There is no single "best" ZIP code in Hamilton County; 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 Hamilton County

Rank	ZIP	Mailing city	Population change	Residents	Households	Residential mailboxes
1	37408	Chattanooga	103.4%	3,502	1,781	2,773
2	37341	Harrison	33.7%	15,591	6,047	5,498
3	37409	Chattanooga	23.3%	3,357	1,553	1,393
4	37404	Chattanooga	21.4%	14,737	5,057	5,712
5	37308	Birchwood	17.2%	3,188	1,189	1,334
6	37315	Collegedale	14.3%	1,825	0	—
7	37411	Chattanooga	11.8%	18,997	8,222	8,272
8	37410	Chattanooga	11.8%	4,129	1,636	2,301
9	37302	Apison	8.8%	5,082	1,930	2,238
10	37377	Signal Mountain	7.7%	17,188	6,406	7,217
11	37373	Sale Creek	7.5%	3,273	1,219	1,455
12	37350	Lookout Mountain	7.4%	2,111	806	823
13	37379	Soddy Daisy	7.3%	29,430	11,364	12,810
14	37405	Chattanooga	6.0%	18,109	8,620	10,957
15	37343	Hixson	5.6%	45,101	18,097	18,870
16	37363	Ooltewah	5.4%	42,093	16,359	16,696
17	30741	Rossville	5.3%	30,041	12,337	13,788
18	37412	Chattanooga	3.1%	21,864	9,505	9,831
19	37353	Mc Donald	2.6%	5,330	2,126	2,237
20	37421	Chattanooga	1.4%	52,985	22,278	24,780
21	37415	Chattanooga	0.6%	24,181	11,505	12,463
22	37336	Georgetown	-3.4%	4,483	1,723	1,997
23	37338	Graysville	-3.7%	3,309	1,191	1,409
24	37406	Chattanooga	-4.9%	13,364	5,263	5,431
25	37402	Chattanooga	-6.9%	3,953	2,665	3,423

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; 29 of 31 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 15,627 households, on 29 carrier routes with 16,710 residential mailboxes. Open any of them on the route map to see each carrier route's own figures before you choose.

Open 37408 on the EDDM route map

More rankings

Businesses that mail these ZIP codes

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Frequently asked questions

Which ZIP code in Hamilton County has the fastest population growth?: 37408 (Chattanooga), at 103.4%, among 29 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.