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

46555 (North Webster), at 52.2 (±4.5), among 14 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 Kosciusko County, IN

These are the 14 ZIP codes in Kosciusko County with the highest median age, out of 14 with at least 1,000 residents. 46555 (North Webster, 52.2), 46982 (Silver Lake, 51.3) and 46567 (Syracuse, 49.2) lead the list. There is no single "best" ZIP code in Kosciusko 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 Kosciusko County

Rank	ZIP	Mailing city	Median age	Residents	Households	Residential mailboxes
1	46555	North Webster	52.2 ±4.5	2,517	1,209	1,158
2	46982	Silver Lake	51.3 ±12.7	2,604	1,087	1,005
3	46567	Syracuse	49.2 ±3.8	9,292	4,099	5,465
4	46510	Claypool	44.5 ±9.9	2,984	1,221	1,370
5	46538	Leesburg	43.7 ±5.8	4,291	1,657	1,995
6	46580	Warsaw	38.9 ±1.7	21,794	8,389	9,510
7	46562	Pierceton	38.9 ±9.0	5,040	2,072	1,883
8	46539	Mentone	37.9 ±2.5	2,659	1,004	762
9	46542	Milford	35.1 ±6.9	5,096	1,825	1,632
10	46582	Warsaw	35.0 ±2.8	14,604	6,034	6,630
11	46550	Nappanee	34.6 ±4.9	12,843	4,595	4,741
12	46910	Akron	33.8 ±5.7	3,221	1,125	1,042
13	46524	Etna Green	31.0 ±18.2	2,023	581	680
14	46590	Winona Lake	28.9 ±4.4	5,080	1,820	1,828

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; 14 of 16 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 9,273 households, on 18 carrier routes with 10,993 residential mailboxes. Open any of them on the route map to see each carrier route's own figures before you choose.

Open 46555 on the EDDM route map

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Businesses that mail these ZIP codes

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Frequently asked questions

Which ZIP code in Kosciusko County has the highest median age?: 46555 (North Webster), at 52.2 (±4.5), among 14 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.