Which ZIP code in Otter Tail County has the highest median age?

56515 (Battle Lake), at 61.8 (±2.1), among 20 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 Otter Tail County, MN

These are the 20 ZIP codes in Otter Tail County with the highest median age, out of 20 with at least 1,000 residents. 56515 (Battle Lake, 61.8), 56571 (Ottertail, 59.5) and 56587 (Vergas, 56.9) lead the list. There is no single "best" ZIP code in Otter Tail 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 Otter Tail County

Rank	ZIP	Mailing city	Median age	Residents	Households	Residential mailboxes
1	56515	Battle Lake	61.8 ±2.1	2,723	1,274	—
2	56571	Ottertail	59.5 ±2.5	1,745	805	—
3	56587	Vergas	56.9 ±2.4	1,339	620	—
4	56528	Dent	56.5 ±2.4	1,623	722	964
5	56586	Underwood	52.6 ±4.0	1,873	799	999
6	56534	Erhard	52.2 ±4.7	1,201	524	504
7	56572	Pelican Rapids	51.2 ±2.5	5,827	2,305	2,575
8	56324	Dalton	49.4 ±4.9	1,028	462	437
9	56551	Henning	49.1 ±4.0	2,387	1,034	—
10	56309	Ashby	44.3 ±5.3	1,296	519	—
11	56537	Fergus Falls	43.7 ±2.2	19,856	8,515	—
12	56477	Sebeka	43.2 ±2.2	2,594	1,158	—
13	56361	Parkers Prairie	42.4 ±3.9	2,592	986	—
14	56446	Eagle Bend	42.0 ±9.3	1,418	593	558
15	56544	Frazee	39.7 ±2.2	5,726	2,188	2,250
16	56482	Wadena	39.5 ±1.3	7,619	3,244	3,005
17	56579	Rothsay	39.5 ±3.8	1,050	383	—
18	56567	New York Mills	36.8 ±2.0	3,367	1,296	—
19	56573	Perham	36.6 ±3.0	7,221	2,853	—
20	56437	Bertha	36.1 ±7.3	1,410	512	—

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; 20 of 28 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 4,220 households. Open any of them on the route map to see each carrier route's own figures before you choose.

Open 56515 on the EDDM route map

More rankings

Businesses that mail these ZIP codes

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EDDM guides

Frequently asked questions

Which ZIP code in Otter Tail County has the highest median age?: 56515 (Battle Lake), at 61.8 (±2.1), among 20 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.