What USDA actually is
USDA Guaranteed Rural Housing (Section 502) is a mortgage program backed by the U.S. Department of Agriculture. The USDA doesn't lend the money — private lenders do — but USDA guarantees the loan, which lets lenders offer 0% down with cheaper mortgage insurance than FHA.
To qualify you need to hit three tests:
- The property is in a USDA-eligible area
- Your household income is at or below 115% of area median
- Your credit & DTI meet the program (typically 640+ FICO, 41% DTI)
The "rural" map is not what you think
USDA's eligible-area map includes far more than farmland. Almost any town under ~35,000 people qualifies, and the fringe of most metros does too. In Arizona for 2026, sizeable portions of these are USDA-eligible:
- Queen Creek (east side)
- Maricopa (most of the city)
- Casa Grande
- Sierra Vista
- Prescott Valley & Chino Valley
- Payson, Show Low, Cottonwood
You can check any address on the USDA property eligibility map. Two houses on the same street can have different answers, so always verify the specific address.
Income limits (Arizona, 2026)
USDA caps household income (everyone living in the home who earns income), not just the applicants. Approximate 2026 limits for Arizona counties:
| County | 1–4 person | 5+ person |
|---|---|---|
| Maricopa (limited eligible areas) | $121,900 | $160,900 |
| Pinal | $121,900 | $160,900 |
| Pima | $112,450 | $148,450 |
| Yavapai | $112,450 | $148,450 |
| Cochise | $112,450 | $148,450 |
USDA lets you deduct $480/dependent and other adjustments from gross income to hit the cap. Verify current limits at eligibility.sc.egov.usda.gov.
Real cost vs FHA
Same $350K house, 700 FICO, 6.75% rate:
| Line | USDA (0% down) | FHA (3.5% down) |
|---|---|---|
| Down payment | $0 | $12,250 |
| Loan (with upfront fee) | $353,500 | $343,656 |
| Principal & interest | $2,293 | $2,229 |
| Tax + insurance | $438 | $438 |
| Monthly MI | $103 (0.35% guarantee) | $157 (0.55% MIP) |
| Total PITI | $2,834 | $2,824 |
| Cash to close (est.) | ~$4,500 | ~$16,000 |
Payments come out nearly identical — but USDA needs $11K less cash to close. For a buyer with strong income but thin savings, that's the whole game.
Where USDA gets tricky
- Household income, not applicant income. A working adult child living at home who earns $50K can knock you out of the program even if their income isn't on the loan.
- Property condition standards. Similar to FHA — no peeling paint, no broken windows, working HVAC. Fixer-uppers are usually out.
- Turn times are slower. Every USDA file goes through USDA's own conditional commitment after the lender approves it. Add ~1 week.
- Primary residence only. No investment properties, no second homes.
- 1-unit only. No duplexes / triplexes (unlike FHA which allows 2–4 unit).
When USDA is the right call
- You're looking in a small town, exurb, or the edge of a metro
- Household income under 115% of area median
- 640+ FICO, DTI under 41%
- Limited savings for down payment (but 2+ months reserves is a plus)
- You want the cheapest possible monthly MI
Where to go from here
- Compare USDA against FHA, VA, and Conventional
- Understand how USDA counts your DTI
- Take the Scorecard — includes a USDA eligibility check.