Which ZIP code in Jefferson County has the highest share of households with children?

59634 (Clancy), at 38.0%, among 6 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.

ZIP codes with the most families with kids in Jefferson County, MT

These are the 6 ZIP codes in Jefferson County with the highest share of households with children, out of 6 with at least 1,000 residents. 59634 (Clancy, 38.0%), 59752 (Three Forks, 34.5%) and 59632 (Boulder, 32.8%) lead the list. There is no single "best" ZIP code in Jefferson County; the right one depends on who you want to reach, so the same ZIP codes are ranked several ways below.

ZIP codes with the most families with kids in Jefferson County

Rank	ZIP	Mailing city	Households with children under 18	Residents	Households	Residential mailboxes
1	59634	Clancy	38.0%	5,521	1,974	2,033
2	59752	Three Forks	34.5%	5,404	2,013	1,338
3	59632	Boulder	32.8%	2,557	989	64
4	59635	East Helena	24.1%	8,292	3,381	—
5	59701	Butte	23.1%	34,232	14,888	—
6	59759	Whitehall	18.0%	3,631	1,630	—

How we ranked them

Ranked by the share of households with one or more people under 18 (ACS Data Profile, 2020–2024). The Census Bureau does not publish a margin of error for this share in our files. ZIP codes need at least 1,000 residents to be ranked; 6 of 9 qualify.

Which of these to mail, and why

Households with children buy tutoring, youth sports, pediatric and family dental care, child care, birthday venues and family dining. EDDM reaches every door on a route, so a higher share means more of your pieces land with families.

The top five ZIP codes on this list hold 23,245 households. Open any of them on the route map to see each carrier route's own figures before you choose.

Open 59634 on the EDDM route map

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Frequently asked questions

Which ZIP code in Jefferson County has the highest share of households with children?: 59634 (Clancy), at 38.0%, among 6 ZIP codes with at least 1,000 residents.
How is this ranking calculated?: Ranked by the share of households with one or more people under 18 (ACS Data Profile, 2020–2024). The Census Bureau does not publish a margin of error for this share in our files.
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.