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

46011 (Anderson), at 45.6 (±3.9), 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 Madison County, IN

These are the 14 ZIP codes in Madison County with the highest median age, out of 14 with at least 1,000 residents. 46011 (Anderson, 45.6), 46017 (Anderson, 45.1) and 46056 (Markleville, 44.5) lead the list. There is no single "best" ZIP code in Madison 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 Madison County

Rank	ZIP	Mailing city	Median age	Residents	Households	Residential mailboxes
1	46011	Anderson	45.6 ±3.9	16,534	6,685	7,117
2	46017	Anderson	45.1 ±2.0	5,181	2,189	2,713
3	46056	Markleville	44.5 ±8.7	2,076	829	855
4	46036	Elwood	44.4 ±1.4	11,683	4,693	5,188
5	46012	Anderson	43.2 ±2.8	20,855	9,117	8,606
6	46044	Frankton	42.6 ±4.7	2,628	1,023	847
7	46013	Anderson	42.1 ±4.5	19,073	8,730	8,872
8	46070	Summitville	40.7 ±5.6	2,100	790	739
9	46064	Pendleton	39.6 ±1.4	18,499	6,086	7,371
10	46051	Lapel	39.3 ±6.6	2,919	1,190	874
11	46001	Alexandria	38.7 ±2.9	10,375	4,226	4,523
12	46048	Ingalls	38.2 ±7.1	2,025	697	703
13	46040	Fortville	36.5 ±3.2	15,943	5,476	7,532
14	46016	Anderson	34.6 ±1.8	17,834	7,126	7,967

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 15 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 23,513 households, on 51 carrier routes with 24,479 residential mailboxes. Open any of them on the route map to see each carrier route's own figures before you choose.

Open 46011 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 Madison County has the highest median age?: 46011 (Anderson), at 45.6 (±3.9), 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.