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

48137 (Gregory), at 56.6 (±2.3), 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 Livingston County, MI

These are the 14 ZIP codes in Livingston County with the highest median age, out of 14 with at least 1,000 residents. 48137 (Gregory, 56.6), 48380 (Milford, 50.0) and 48169 (Pinckney, 48.9) lead the list. There is no single "best" ZIP code in Livingston 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 Livingston County

Rank	ZIP	Mailing city	Median age	Residents	Households	Residential mailboxes
1	48137	Gregory	56.6 ±2.3	4,157	1,857	—
2	48380	Milford	50.0 ±3.3	7,125	2,578	3,022
3	48169	Pinckney	48.9 ±2.3	20,519	8,346	—
4	48353	Hartland	47.6 ±4.5	7,014	2,982	—
5	48116	Brighton	46.6 ±2.3	27,289	11,451	12,576
6	48114	Brighton	44.0 ±1.3	21,588	8,054	8,442
7	48178	South Lyon	42.9 ±1.6	37,789	13,953	15,616
8	48430	Fenton	42.7 ±2.3	39,309	15,839	17,125
9	48451	Linden	42.3 ±3.2	16,097	5,927	—
10	48843	Howell	42.0 ±1.1	48,014	18,740	—
11	48892	Webberville	41.8 ±3.2	4,715	1,850	1,707
12	48189	Whitmore Lake	41.6 ±2.4	13,893	5,833	—
13	48836	Fowlerville	39.4 ±2.1	15,089	5,521	5,602
14	48855	Howell	39.2 ±1.6	16,668	6,162	—

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 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 27,214 households. Open any of them on the route map to see each carrier route's own figures before you choose.

Open 48137 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 Livingston County has the highest median age?: 48137 (Gregory), at 56.6 (±2.3), 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.