Which ZIP code in Boulder has the highest share of owner-occupied homes?

80304 (Boulder), at 70.0% (±3.1%), 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 highest homeownership in Boulder, CO

These are the 6 ZIP codes in Boulder, CO with the highest share of owner-occupied homes, out of 6 with at least 1,000 residents. 80304 (Boulder, 70.0%), 80305 (Boulder, 60.2%) and 80301 (Boulder, 54.9%) lead the list. There is no single "best" ZIP code in Boulder; the right one depends on who you want to reach, so the same ZIP codes are ranked several ways below.

ZIP codes with the highest homeownership in Boulder

Rank	ZIP	Mailing city	Owner-occupied homes	Residents	Households	Residential mailboxes
1	80304	Boulder	70.0% ±3.1%	25,383	11,358	12,139
2	80305	Boulder	60.2% ±3.5%	16,291	6,976	7,285
3	80301	Boulder	54.9% ±3.0%	25,007	12,371	13,814
4	80303	Boulder	43.9% ±2.8%	24,996	11,783	12,581
5	80302	Boulder	38.9% ±2.7%	29,569	12,425	12,329
6	80310	Boulder	0.0% ±100.0%	7,692	2	—

How we ranked them

Ranked by the share of occupied homes that are owner-occupied (ACS 5-year estimates, 2020–2024). ZIP codes need at least 1,000 residents to be ranked; 6 of 6 qualify.

Which of these to mail, and why

Homeowners make the decisions about roofs, HVAC, lawns, solar and insurance. A high owner share means fewer pieces wasted on renters who can't hire the work.

The top five ZIP codes on this list hold 54,913 households, on 114 carrier routes with 58,148 residential mailboxes. Open any of them on the route map to see each carrier route's own figures before you choose.

Open 80304 on the EDDM route map

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Frequently asked questions

Which ZIP code in Boulder has the highest share of owner-occupied homes?: 80304 (Boulder), at 70.0% (±3.1%), among 6 ZIP codes with at least 1,000 residents.
How is this ranking calculated?: Ranked by the share of occupied homes that are owner-occupied (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.