Which ZIP code in St. Lucie County has the highest share of households with children?

34947 (Fort Pierce), at 42.2%, 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.

ZIP codes with the most families with kids in St. Lucie County, FL

These are the 15 ZIP codes in St. Lucie County with the highest share of households with children, out of 15 with at least 1,000 residents. 34947 (Fort Pierce, 42.2%), 34953 (Port Saint Lucie, 37.0%) and 34945 (Fort Pierce, 34.6%) 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.

ZIP codes with the most families with kids in St. Lucie County

Rank	ZIP	Mailing city	Households with children under 18	Residents	Households	Residential mailboxes
1	34947	Fort Pierce	42.2%	12,804	4,109	5,852
2	34953	Port Saint Lucie	37.0%	86,875	28,211	31,975
3	34945	Fort Pierce	34.6%	6,321	1,856	2,654
4	34983	Port Saint Lucie	34.0%	49,001	17,203	18,198
5	34981	Fort Pierce	31.6%	5,031	1,742	2,446
6	34984	Port Saint Lucie	29.9%	20,151	7,126	8,519
7	34982	Fort Pierce	27.6%	31,143	12,016	12,179
8	34950	Fort Pierce	27.2%	17,461	6,839	6,124
9	34946	Fort Pierce	23.6%	6,852	2,831	3,127
10	34986	Port Saint Lucie	20.6%	30,715	12,779	15,653
11	34952	Port Saint Lucie	20.5%	42,655	18,375	21,903
12	34957	Jensen Beach	15.9%	23,462	11,200	15,814
13	34987	Port Saint Lucie	15.6%	21,727	9,616	15,555
14	34951	Fort Pierce	14.9%	17,148	7,419	8,784
15	34949	Fort Pierce	2.4%	7,470	4,146	6,806

How we ranked them

Ranked by the share of households with one or more people under 18 (ACS Data Profile, 2020–2024). The Census Bureau does not publish a margin of error for this share in our files. ZIP codes need at least 1,000 residents to be ranked; 15 of 15 qualify.

Which of these to mail, and why

Households with children buy tutoring, youth sports, pediatric and family dental care, child care, birthday venues and family dining. EDDM reaches every door on a route, so a higher share means more of your pieces land with families.

The top five ZIP codes on this list hold 53,121 households, on 83 carrier routes with 61,125 residential mailboxes. Open any of them on the route map to see each carrier route's own figures before you choose.

Open 34947 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 St. Lucie County has the highest share of households with children?: 34947 (Fort Pierce), at 42.2%, among 15 ZIP codes with at least 1,000 residents.
How is this ranking calculated?: Ranked by the share of households with one or more people under 18 (ACS Data Profile, 2020–2024). The Census Bureau does not publish a margin of error for this share in our files.
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.