Which ZIP code in Hamilton County has the lowest median age?

37315 (Collegedale), at 20.0 (±0.6), 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.

Youngest ZIP codes in Hamilton County, TN

These are the 25 ZIP codes in Hamilton County with the lowest median age, out of 29 with at least 1,000 residents. 37315 (Collegedale, 20.0), 37403 (Chattanooga, 21.2) and 37410 (Chattanooga, 24.2) 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.

Youngest ZIP codes in Hamilton County

Rank	ZIP	Mailing city	Median age	Residents	Households	Residential mailboxes
1	37315	Collegedale	20.0 ±0.6	1,825	0	—
2	37403	Chattanooga	21.2 ±0.7	6,413	1,990	2,397
3	37410	Chattanooga	24.2 ±3.5	4,129	1,636	2,301
4	37407	Chattanooga	26.4 ±4.0	9,156	2,864	3,270
5	37408	Chattanooga	32.1 ±2.0	3,502	1,781	2,773
6	37404	Chattanooga	34.5 ±2.8	14,737	5,057	5,712
7	37409	Chattanooga	35.5 ±4.6	3,357	1,553	1,393
8	37406	Chattanooga	35.9 ±1.6	13,364	5,263	5,431
9	37411	Chattanooga	36.4 ±2.2	18,997	8,222	8,272
10	37405	Chattanooga	36.7 ±1.3	18,109	8,620	10,957
11	37415	Chattanooga	37.1 ±1.9	24,181	11,505	12,463
12	37412	Chattanooga	37.4 ±2.3	21,864	9,505	9,831
13	37308	Birchwood	38.2 ±7.0	3,188	1,189	1,334
14	37416	Chattanooga	39.0 ±5.8	13,919	6,135	7,181
15	37341	Harrison	40.6 ±1.9	15,591	6,047	5,498
16	37421	Chattanooga	40.8 ±1.5	52,985	22,278	24,780
17	30741	Rossville	41.0 ±2.7	30,041	12,337	13,788
18	37343	Hixson	42.4 ±2.3	45,101	18,097	18,870
19	37363	Ooltewah	43.4 ±1.9	42,093	16,359	16,696
20	37336	Georgetown	43.6 ±7.9	4,483	1,723	1,997
21	37379	Soddy Daisy	45.0 ±1.7	29,430	11,364	12,810
22	37377	Signal Mountain	45.0 ±2.1	17,188	6,406	7,217
23	37302	Apison	45.5 ±2.6	5,082	1,930	2,238
24	37402	Chattanooga	46.0 ±11.8	3,953	2,665	3,423
25	37338	Graysville	46.4 ±3.8	3,309	1,191	1,409

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; 29 of 31 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 8,271 households. Open any of them on the route map to see each carrier route's own figures before you choose.

Open 37315 on the EDDM route map

More rankings

Businesses that mail these ZIP codes

Map it and price it

EDDM guides

Frequently asked questions

Which ZIP code in Hamilton County has the lowest median age?: 37315 (Collegedale), at 20.0 (±0.6), among 29 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.