Which states have the most detached houses?
Detached single-family houses are the homes most EDDM mailers target: one household per mailbox, and usually an owner who buys lawn care, roofing, remodeling and home services. Share of all housing units that are detached houses:
- Idaho: 74%
- Oklahoma: 73%
- Indiana: 73%
- Iowa: 72%
- Michigan: 72%
Lowest share:
- District of Columbia: 11%
- New York: 41%
- Massachusetts: 51%
- Maryland: 51%
- New Jersey: 53%
EDDM delivers to every address on a carrier route, apartments included. In a state with fewer detached houses, choose routes by their residential counts on the USPS EDDM map instead of mailing a whole ZIP code.
How we calculated it
- Households and housing. U.S. Census Bureau, American Community Survey 5-year estimates 2020-2024: households (table B11001), housing units and 1-unit detached units (B25024), owner-occupied units (B25003). Retrieved October 27, 2026.
- Printing. Our current prices for 16pt postcards with UV coating, full color both sides. Every quantity is sold buy-one-get-one, so 2,500, 5,000 and 10,000 pieces are the quantities received. The page reads the prices from the same price list as our cart, so it updates when prices change.
- Shipping. UPS Ground from the nearest of our six U.S. print hubs to one representative ZIP code in each state, priced by weight through the same shipping engine as checkout.
- Postage. The USPS EDDM Retail price of $0.260 per piece, from USPS Notice 123, for flats up to 3.3 ounces.
- Every household. Households ÷ 10,000, rounded up, gives the print runs; each run is priced and shipped to the state's representative ZIP code, and postage is added for every household.
What this study does not measure
- Response rates. We price the mailing, not the result. Track calls and orders from your own mailings to know what one is worth to you.
- Carrier route counts. Census households are not the same as USPS delivery points. A route's count on the EDDM map includes vacant addresses and, if you choose them, businesses.
- Design, taxes and drop-off. Design fees, sales tax and the trip to the post office are left out. EDDM Retail also limits a mailing to 5,000 pieces per post office per day, so a 10,000-piece mailing takes two days or two post offices.
- Other printers' prices. Printing and shipping are our prices only. Postage is the same wherever you print.
- Survey error. ACS figures are estimates with margins of error, averaged over five years.