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

32234 (Jacksonville), at 32.8 (±3.6), among 10 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 Clay County, FL

These are the 10 ZIP codes in Clay County with the lowest median age, out of 10 with at least 1,000 residents. 32234 (Jacksonville, 32.8), 32065 (Orange Park, 37.2) and 32068 (Middleburg, 38.8) lead the list. There is no single "best" ZIP code in Clay 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 Clay County

Rank	ZIP	Mailing city	Median age	Residents	Households	Residential mailboxes
1	32234	Jacksonville	32.8 ±3.6	9,678	3,272	3,614
2	32065	Orange Park	37.2 ±2.2	41,578	14,640	14,734
3	32068	Middleburg	38.8 ±1.5	58,983	20,769	24,150
4	32091	Starke	39.4 ±1.6	14,719	5,517	6,646
5	32043	Green Cove Springs	40.2 ±1.5	34,562	13,042	15,283
6	32073	Orange Park	41.4 ±2.3	43,561	16,763	17,263
7	32656	Keystone Heights	42.6 ±1.9	15,836	5,910	6,640
8	32140	Florahome	43.9 ±21.2	1,479	671	828
9	32003	Fleming Island	47.7 ±1.8	29,766	11,470	11,408
10	32666	Melrose	58.9 ±4.0	6,662	2,848	2,759

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; 10 of 11 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 57,240 households, on 110 carrier routes with 64,427 residential mailboxes. Open any of them on the route map to see each carrier route's own figures before you choose.

Open 32234 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 Clay County has the lowest median age?: 32234 (Jacksonville), at 32.8 (±3.6), among 10 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.