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

61736 (Downs), at 42.6%, among 18 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 McLean County, IL

These are the 18 ZIP codes in McLean County with the fastest population growth, out of 18 with at least 1,000 residents. 61736 (Downs, 42.6%), 61744 (Gridley, 12.2%) and 61754 (Mc Lean, 11.3%) lead the list. There is no single "best" ZIP code in McLean 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 McLean County

Rank	ZIP	Mailing city	Population change	Residents	Households	Residential mailboxes
1	61736	Downs	42.6%	2,673	947	710
2	61744	Gridley	12.2%	2,157	854	628
3	61754	Mc Lean	11.3%	1,131	417	325
4	61776	Towanda	5.7%	1,285	519	413
5	61732	Danvers	3.7%	2,099	764	579
6	61726	Chenoa	2.8%	2,546	1,016	1,052
7	61705	Bloomington	2.1%	13,213	5,232	—
8	61770	Saybrook	2.0%	1,067	387	371
9	61704	Bloomington	1.8%	37,279	15,839	16,225
10	61748	Hudson	0.9%	2,675	1,016	1,058
11	61752	Le Roy	-0.3%	4,332	1,743	1,823
12	61728	Colfax	-0.4%	1,359	491	498
13	61701	Bloomington	-1.5%	35,136	16,537	—
14	61761	Normal	-2.0%	54,075	20,554	—
15	61745	Heyworth	-2.5%	4,542	1,553	—
16	61842	Farmer City	-5.2%	2,620	1,073	1,163
17	61753	Lexington	-8.1%	2,833	1,125	—
18	61725	Carlock	-15.5%	1,459	521	—

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; 18 of 26 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 3,501 households, on 8 carrier routes with 2,655 residential mailboxes. Open any of them on the route map to see each carrier route's own figures before you choose.

Open 61736 on the EDDM route map

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Frequently asked questions

Which ZIP code in McLean County has the fastest population growth?: 61736 (Downs), at 42.6%, among 18 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.