Which ZIP code in St. Lucie County has the lowest median age?

34981 (Fort Pierce), at 32.7 (±8.2), among 15 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 St. Lucie County, FL

These are the 15 ZIP codes in St. Lucie County with the lowest median age, out of 15 with at least 1,000 residents. 34981 (Fort Pierce, 32.7), 34947 (Fort Pierce, 33.7) and 34945 (Fort Pierce, 39.0) lead the list. There is no single "best" ZIP code in St. Lucie 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 St. Lucie County

Rank	ZIP	Mailing city	Median age	Residents	Households	Residential mailboxes
1	34981	Fort Pierce	32.7 ±8.2	5,031	1,742	2,446
2	34947	Fort Pierce	33.7 ±2.9	12,804	4,109	5,852
3	34945	Fort Pierce	39.0 ±4.3	6,321	1,856	2,654
4	34946	Fort Pierce	39.1 ±2.4	6,852	2,831	3,127
5	34950	Fort Pierce	39.5 ±3.9	17,461	6,839	6,124
6	34982	Fort Pierce	39.7 ±4.5	31,143	12,016	12,179
7	34953	Port Saint Lucie	40.6 ±1.1	86,875	28,211	31,975
8	34983	Port Saint Lucie	40.8 ±1.6	49,001	17,203	18,198
9	34984	Port Saint Lucie	44.0 ±3.0	20,151	7,126	8,519
10	34952	Port Saint Lucie	51.0 ±1.8	42,655	18,375	21,903
11	34957	Jensen Beach	57.0 ±2.7	23,462	11,200	15,814
12	34986	Port Saint Lucie	57.1 ±4.9	30,715	12,779	15,653
13	34951	Fort Pierce	57.3 ±3.2	17,148	7,419	8,784
14	34987	Port Saint Lucie	58.1 ±3.2	21,727	9,616	15,555
15	34949	Fort Pierce	64.8 ±2.1	7,470	4,146	6,806

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; 15 of 15 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 17,377 households, on 29 carrier routes with 20,203 residential mailboxes. Open any of them on the route map to see each carrier route's own figures before you choose.

Open 34981 on the EDDM route map

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Frequently asked questions

Which ZIP code in St. Lucie County has the lowest median age?: 34981 (Fort Pierce), at 32.7 (±8.2), among 15 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.