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

30060 (Marietta), at 30.9 (±1.2), among 19 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 Cobb County, GA

These are the 19 ZIP codes in Cobb County with the lowest median age, out of 19 with at least 1,000 residents. 30060 (Marietta, 30.9), 30144 (Kennesaw, 32.6) and 30168 (Austell, 32.7) lead the list. There is no single "best" ZIP code in Cobb 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 Cobb County

Rank	ZIP	Mailing city	Median age	Residents	Households	Residential mailboxes
1	30060	Marietta	30.9 ±1.2	38,499	12,963	14,508
2	30144	Kennesaw	32.6 ±1.2	59,661	21,979	23,416
3	30168	Austell	32.7 ±2.2	26,612	9,304	10,343
4	30067	Marietta	33.1 ±0.9	47,271	19,463	21,519
5	30339	Atlanta	34.0 ±1.4	35,372	19,910	21,221
6	30008	Marietta	34.1 ±1.6	35,547	11,705	12,242
7	30080	Smyrna	35.1 ±1.2	53,316	24,950	26,919
8	30102	Acworth	37.0 ±1.8	45,319	15,561	18,932
9	30082	Smyrna	37.0 ±1.2	27,296	11,050	12,175
10	30106	Austell	38.6 ±2.0	23,107	9,401	9,540
11	30066	Marietta	38.8 ±1.4	61,761	22,852	23,160
12	30101	Acworth	39.2 ±1.6	62,593	21,672	23,857
13	30126	Mableton	39.6 ±1.7	41,829	15,853	17,909
14	30064	Marietta	40.8 ±1.6	52,125	18,771	20,262
15	30152	Kennesaw	41.1 ±1.2	44,977	16,541	17,422
16	30062	Marietta	41.2 ±1.1	62,284	23,211	25,054
17	30127	Powder Springs	41.9 ±1.7	71,626	24,431	25,730
18	30075	Roswell	43.1 ±1.5	56,263	21,548	22,251
19	30068	Marietta	44.0 ±2.0	33,882	12,849	13,016

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; 19 of 21 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 83,619 households, on 123 carrier routes with 91,007 residential mailboxes. Open any of them on the route map to see each carrier route's own figures before you choose.

Open 30060 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 Cobb County has the lowest median age?: 30060 (Marietta), at 30.9 (±1.2), among 19 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.