Oldest ZIP codes in Iroquois County, IL

These are the 13 ZIP codes in Iroquois County with the highest median age, out of 13 with at least 1,000 residents. 60948 (Loda, 48.5), 60970 (Watseka, 48.0) and 60964 (Saint Anne, 47.0) lead the list. There is no single "best" ZIP code in Iroquois 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 Iroquois County

RankZIPMailing cityMedian ageResidentsHouseholdsResidential mailboxes
160948Loda48.5 ±5.81,660688692
260970Watseka48.0 ±3.45,9912,8132,937
360964Saint Anne47.0 ±3.64,7771,8641,864
460938Gilman44.7 ±5.72,035825834
560966Sheldon44.5 ±4.71,385636342
660953Milford44.1 ±3.92,075925906
760941Herscher42.6 ±4.81,627642593
860922Chebanse41.1 ±3.92,088838762
960942Hoopeston39.8 ±6.85,6572,2472,479
1060955Onarga39.4 ±4.81,953699649
1160924Cissna Park38.6 ±6.31,565655513
1260927Clifton37.5 ±7.82,300852508
1360911Ashkum36.6 ±4.41,325521336

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; 13 of 27 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 6,826 households, on 19 carrier routes with 6,669 residential mailboxes. Open any of them on the route map to see each carrier route's own figures before you choose.

Open 60948 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 Iroquois County has the highest median age?
60948 (Loda), at 48.5 (±5.8), among 13 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.