Youngest ZIP codes in Boone County, IN

These are the 9 ZIP codes in Boone County with the lowest median age, out of 9 with at least 1,000 residents. 46075 (Whitestown, 32.6), 46035 (Colfax, 35.9) and 46052 (Lebanon, 37.2) lead the list. There is no single "best" ZIP code in Boone 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 Boone County

RankZIPMailing cityMedian ageResidentsHouseholdsResidential mailboxes
146075Whitestown32.6 ±1.09,5093,7477,126
246035Colfax35.9 ±7.31,348482389
346052Lebanon37.2 ±1.823,5539,73810,512
447968New Ross39.8 ±6.11,356491295
546077Zionsville40.6 ±1.336,76013,13113,941
646147Jamestown40.8 ±7.62,5189891,062
746071Thorntown43.0 ±2.83,0721,1201,386
846069Sheridan45.0 ±4.77,5043,1623,611
946050Kirklin46.4 ±6.81,808763570

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; 9 of 10 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 27,589 households, on 52 carrier routes with 32,263 residential mailboxes. Open any of them on the route map to see each carrier route's own figures before you choose.

Open 46075 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 Boone County has the lowest median age?
46075 (Whitestown), at 32.6 (±1.0), among 9 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.