Which ZIP code in Iroquois County has the fastest population growth?

60955 (Onarga), at 18.0%, among 13 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.

Fastest-growing ZIP codes in Iroquois County, IL

These are the 13 ZIP codes in Iroquois County with the fastest population growth, out of 13 with at least 1,000 residents. 60955 (Onarga, 18.0%), 60927 (Clifton, 12.0%) and 60948 (Loda, 5.7%) 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.

Fastest-growing ZIP codes in Iroquois County

Rank	ZIP	Mailing city	Population change	Residents	Households	Residential mailboxes
1	60955	Onarga	18.0%	1,953	699	649
2	60927	Clifton	12.0%	2,300	852	508
3	60948	Loda	5.7%	1,660	688	692
4	60924	Cissna Park	3.3%	1,565	655	513
5	60938	Gilman	3.0%	2,035	825	834
6	60911	Ashkum	1.1%	1,325	521	336
7	60964	Saint Anne	-1.6%	4,777	1,864	1,864
8	60942	Hoopeston	-4.1%	5,657	2,247	2,479
9	60966	Sheldon	-10.1%	1,385	636	342
10	60970	Watseka	-11.3%	5,991	2,813	2,937
11	60953	Milford	-14.4%	2,075	925	906
12	60922	Chebanse	-18.9%	2,088	838	762
13	60941	Herscher	-26.0%	1,627	642	593

How we ranked them

Ranked by the change in ACS population estimates between the 2015–2019 and 2020–2024 releases. Both are 5-year averages, and ZIP code areas were redrawn for 2020, so a large change can partly reflect a boundary change. Both periods must have at least 1,000 residents. ZIP codes need at least 1,000 residents to be ranked; 13 of 27 qualify.

Which of these to mail, and why

Growing ZIP codes add households every year, which means new homes, new routes and customers without a go-to provider yet. Check the route map: new subdivisions can appear as new carrier routes.

The top five ZIP codes on this list hold 3,719 households, on 12 carrier routes with 3,196 residential mailboxes. Open any of them on the route map to see each carrier route's own figures before you choose.

Open 60955 on the EDDM route map

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Frequently asked questions

Which ZIP code in Iroquois County has the fastest population growth?: 60955 (Onarga), at 18.0%, among 13 ZIP codes with at least 1,000 residents.
How is this ranking calculated?: Ranked by the change in ACS population estimates between the 2015–2019 and 2020–2024 releases. Both are 5-year averages, and ZIP code areas were redrawn for 2020, so a large change can partly reflect a boundary change. Both periods must have 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.

This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.