Which ZIP code in Kendall County has the lowest median age?

60545 (Plano), at 32.8 (±1.7), 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.

Youngest ZIP codes in Kendall County, IL

These are the 13 ZIP codes in Kendall County with the lowest median age, out of 13 with at least 1,000 residents. 60545 (Plano, 32.8), 60447 (Minooka, 33.6) and 60503 (Aurora, 34.9) lead the list. There is no single "best" ZIP code in Kendall County; the right one depends on who you want to reach, so the same ZIP codes are ranked several ways below.

Youngest ZIP codes in Kendall County

Rank	ZIP	Mailing city	Median age	Residents	Households	Residential mailboxes
1	60545	Plano	32.8 ±1.7	14,392	4,926	4,993
2	60447	Minooka	33.6 ±2.0	16,102	5,321	5,129
3	60503	Aurora	34.9 ±1.7	16,789	5,246	6,014
4	60431	Joliet	35.2 ±1.5	27,138	8,880	10,297
5	60538	Montgomery	35.9 ±1.3	30,514	10,175	10,316
6	60586	Plainfield	36.2 ±1.1	47,834	14,452	15,572
7	60560	Yorkville	36.5 ±1.5	28,795	9,901	11,621
8	60544	Plainfield	38.8 ±2.6	27,306	9,957	11,646
9	60585	Plainfield	38.9 ±0.9	25,960	8,037	9,126
10	60543	Oswego	39.0 ±1.6	43,047	14,469	15,551
11	60541	Newark	39.3 ±3.2	3,342	1,106	990
12	60548	Sandwich	40.8 ±3.2	11,721	4,548	5,002
13	60512	Bristol	53.4 ±14.2	1,090	435	370

How we ranked them

Ranked by median age of all residents, lowest first (ACS 5-year estimates, 2020–2024). ZIP codes need at least 1,000 residents to be ranked; 13 of 15 qualify.

Which of these to mail, and why

Younger ZIP codes skew toward renters, students and young families: fitness, quick-service food, apartments, entertainment and first-time-buyer offers.

The top five ZIP codes on this list hold 34,548 households, on 59 carrier routes with 36,749 residential mailboxes. Open any of them on the route map to see each carrier route's own figures before you choose.

Open 60545 on the EDDM route map

More rankings

Businesses that mail these ZIP codes

Map it and price it

EDDM guides

Frequently asked questions

Which ZIP code in Kendall County has the lowest median age?: 60545 (Plano), at 32.8 (±1.7), among 13 ZIP codes with at least 1,000 residents.
How is this ranking calculated?: Ranked by median age of all residents, lowest 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.