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

61319 (Cornell), at 50.1 (±5.6), among 11 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, IL

These are the 11 ZIP codes in Livingston County with the highest median age, out of 11 with at least 1,000 residents. 61319 (Cornell, 50.1), 60460 (Odell, 44.0) and 61744 (Gridley, 43.9) 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	61319	Cornell	50.1 ±5.6	1,286	611	—
2	60460	Odell	44.0 ±9.3	1,399	568	545
3	61744	Gridley	43.9 ±6.4	2,157	854	628
4	61764	Pontiac	42.2 ±1.5	13,668	5,377	5,300
5	61364	Streator	41.9 ±1.8	17,963	8,094	8,122
6	61740	Flanagan	41.9 ±7.7	1,377	604	517
7	60921	Chatsworth	39.5 ±12.0	1,458	650	396
8	60420	Dwight	39.3 ±5.9	4,682	1,901	2,134
9	61726	Chenoa	35.8 ±7.4	2,546	1,016	1,052
10	61741	Forrest	35.1 ±3.9	1,549	627	—
11	61739	Fairbury	33.9 ±3.4	4,628	1,813	—

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; 11 of 25 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 15,504 households. Open any of them on the route map to see each carrier route's own figures before you choose.

Open 61319 on the EDDM route map

More rankings

Businesses that mail these ZIP codes

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Frequently asked questions

Which ZIP code in Livingston County has the highest median age?: 61319 (Cornell), at 50.1 (±5.6), among 11 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.