Which ZIP code in Jefferson County has the highest median age?

70005 (Metairie), at 44.7 (±3.8), 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.

Oldest ZIP codes in Jefferson Parish, LA

These are the 15 ZIP codes in Jefferson Parish with the highest median age, out of 15 with at least 1,000 residents. 70005 (Metairie, 44.7), 70121 (New Orleans, 43.7) and 70003 (Metairie, 43.4) lead the list. There is no single "best" ZIP code in Jefferson County; the right one depends on who you want to reach, so the same ZIP codes are ranked several ways below.

Oldest ZIP codes in Jefferson County

Rank	ZIP	Mailing city	Median age	Residents	Households	Residential mailboxes
1	70005	Metairie	44.7 ±3.8	24,088	11,644	—
2	70121	New Orleans	43.7 ±3.9	10,558	5,433	—
3	70003	Metairie	43.4 ±2.2	39,344	16,244	—
4	70123	New Orleans	43.3 ±2.7	27,386	13,635	13,788
5	70065	Kenner	41.2 ±2.0	48,936	20,009	—
6	70001	Metairie	40.8 ±1.1	38,950	17,808	19,450
7	70072	Marrero	40.6 ±2.5	55,693	21,033	22,400
8	70058	Harvey	40.5 ±1.8	39,578	14,678	15,938
9	70067	Lafitte	39.3 ±4.9	2,754	975	—
10	70002	Metairie	38.1 ±2.2	19,426	8,881	9,427
11	70006	Metairie	37.8 ±3.0	16,170	6,092	7,043
12	70094	Westwego	37.7 ±3.1	32,130	11,961	13,055
13	70053	Gretna	37.7 ±1.7	16,621	7,224	—
14	70056	Gretna	35.2 ±1.9	40,348	14,627	15,469
15	70062	Kenner	35.1 ±3.1	17,771	6,179	7,010

How we ranked them

Ranked by median age of all residents, highest first (ACS 5-year estimates, 2020–2024). ZIP codes need at least 1,000 residents to be ranked; 15 of 17 qualify.

Which of these to mail, and why

Older ZIP codes respond to health care, hearing and vision, Medicare plans, home safety, estate planning and services that come to the door.

The top five ZIP codes on this list hold 66,965 households. Open any of them on the route map to see each carrier route's own figures before you choose.

Open 70005 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 Jefferson County has the highest median age?: 70005 (Metairie), at 44.7 (±3.8), among 15 ZIP codes with at least 1,000 residents.
How is this ranking calculated?: Ranked by median age of all residents, highest 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.