USDA zero-down financing is available in communities that most San Antonio buyers would never describe as rural — and it’s one of the most consistently underused financing tools in the metro precisely because buyers don’t know which of their target communities qualify. Boerne. New Braunfels. Bulverde. Spring Branch. Marion. Seguin. Castroville. These are established communities with restaurants, schools, grocery stores, and modern subdivisions — and most of their addresses qualify for USDA Rural Development financing with zero down payment and no funding fee. The program’s 2026 income limits of $119,850 for households of 1–4 people under the standard national cap — with Comal County applying its own local limits — mean that many moderate-income San Antonio buyers qualify for a genuinely zero-down purchase in communities they’ve been considering for other reasons entirely. This guide covers every USDA-eligible community in the San Antonio metro, the income limits that apply, the loan mechanics, and how USDA stacks against VA and conventional at current price points.
Brock Bremmer | Real Estate Agent | eXp Realty | San Antonio Metro Area
Also see: TSAHC Home Sweet Texas Guide | First-Time Buyer Guide
What Is a USDA Loan and How Does It Work?
The USDA Rural Development Guaranteed Housing Loan (Section 502) is a federal program providing 100% financing — zero down payment — for eligible buyers purchasing in eligible locations. Despite being called a “rural” loan, USDA-eligible areas include many suburban and small-town communities, not just farmland or countryside — the eligibility is determined by population density and proximity to major urban centers, not by land use or agricultural character.
Key program features:
- Zero down payment: 100% financing — no down payment required
- No monthly PMI: Instead of private mortgage insurance, USDA charges an upfront guarantee fee (1% of the loan amount, financeable into the loan) and an annual fee (0.35% of the outstanding loan balance, paid monthly). The annual fee of 0.35% is lower than FHA’s 0.55% annual MIP — making USDA’s ongoing cost structure more favorable than FHA for buyers who qualify
- Competitive fixed rates: 30-year fixed-rate loans through USDA-approved lenders at rates competitive with conventional financing
- Primary residence only: USDA loans are for owner-occupied primary residences — no investment properties or vacation homes
- Income limits apply: Total household income — all adult household members, not just the borrower — must fall within USDA’s limits for the specific county
- Property must be in an eligible area: Verify every specific address at the USDA eligibility map at eligibility.sc.egov.usda.gov before making any program decisions
- Credit minimum: Most USDA-approved lenders require 640+ credit score — slightly higher than FHA’s 580 minimum
Which San Antonio Metro Communities Qualify for USDA
USDA eligibility is determined at the address level — not the community level. A community can be partially eligible and partially not. Always verify your specific address at the USDA eligibility map before making program decisions. With that caveat clearly stated, here is the USDA eligibility profile for each major San Antonio metro community:
Strong USDA eligibility (most addresses qualify)
- Boerne and Kendall County: Over 98% of Kendall County qualifies for USDA — including most Boerne-area addresses. One of the most surprising USDA markets in the metro given Boerne’s premium community perception. At Boerne’s entry-level pricing of $380,000–$480,000, USDA can save buyers $11,400–$14,400 in down payment versus 3% conventional. Verify your specific address and confirm current income limits for Kendall County at the USDA eligibility tool
- Marion (Guadalupe County): Marion’s rural corridor character makes it one of the strongest USDA markets in the northeast corridor — zero-down purchases on active new construction in Sweetwater, Emory, and Harvest Hills communities. Some newer Marion development may have crossed eligibility thresholds — verify every specific address. Income limits apply at Guadalupe County rates
- Seguin (Guadalupe County): Strong USDA eligibility throughout most Seguin addresses — particularly valuable at Seguin’s $210,000–$316,000 price range where zero-down saves buyers $6,300–$9,480 in down payment versus 3% conventional
- Castroville (Medina County): Strong USDA eligibility throughout the Castroville area — consistent with Medina County’s rural character. At $249,300–$300,000, zero-down saves buyers $7,479–$9,000 versus 3% conventional
- Spring Branch and Canyon Lake area (Comal County): Most Spring Branch and Canyon Lake corridor addresses qualify — Bulverde and Canyon Lake are specifically cited as active USDA eligible areas in Comal County. Valuable at Tier 1 Spring Branch prices ($320,000–$550,000) — though income limits may affect eligibility at higher price points
- Bulverde (Comal County): Most Bulverde addresses qualify — zero-down in an active new construction market with Comal ISD 9/10 and Comal County’s 1.21% tax rate. Particularly compelling at Tier 1 subdivision pricing ($330,000–$500,000)
Partial USDA eligibility (verify by address)
- New Braunfels (Comal County): New Braunfels has both eligible and ineligible addresses — the more urbanized core sections near downtown have largely lost USDA eligibility as population density has grown, while outer sections and rural-adjacent addresses may still qualify. Comal County income limits are $90,300 for 1–4 person households and $119,200 for 5–8 person households — lower than the national standard, which affects eligibility for higher-income households. Verify every specific NB address at the USDA eligibility tool
- Schertz (Guadalupe County): Some Schertz addresses qualify — particularly in less-developed sections. Verify specific addresses. Guadalupe County income limits apply
- Helotes (Bexar County outer edge): Some outer Helotes addresses qualify — the community’s proximity to San Antonio’s urban core has reduced overall eligibility, but outer addresses may still qualify. Verify specifically
Generally not USDA eligible (too urban)
- Most inner Bexar County addresses (San Antonio proper, Converse, Universal City, Live Oak, Leon Valley, Alamo Ranch) fall within the San Antonio Metropolitan Statistical Area and generally do not qualify for USDA financing
- Stone Oak, most of Schertz’s suburban core, and most established NISD/NEISD communities within the urbanized Bexar County area are not USDA eligible
USDA Income Limits — What You Actually Need to Know
USDA income limits are one of the program’s most misunderstood aspects. Three critical points:
- Total household income — not just the borrower: USDA counts all adult household members’ income, not just the mortgage applicant’s. A household where the borrower earns $65,000 but a spouse earns $45,000 has a household income of $110,000 — which may exceed county-specific limits. Know your total household income before assuming USDA eligibility
- Income limits vary by county: Most Texas areas follow the standard USDA limits of $119,850 for a 1–4 person household and $158,250 for a 5–8 person household — but Comal County applies its own lower limits: $90,300 for 1–4 person households and $119,200 for 5–8 person households. Buyers targeting New Braunfels or Bulverde with household incomes above $90,300 for a 1–4 person household may not qualify under USDA even if the property location is eligible
- Deductions can reduce qualifying income: USDA allows specific deductions from gross household income including childcare expenses, disability expenses, and income from dependents under 18. These deductions can bring households above the gross income limit into eligibility when adjusted income is calculated. A USDA-experienced lender will run the adjusted income calculation — not just the gross income check
USDA vs VA vs FHA vs Conventional — Which Is Best at SA Price Points
| Feature | USDA | VA | FHA | Conventional (3% down) |
| Down payment | Zero | Zero | 3.5% | 3% |
| Upfront fee | 1% guarantee fee (financeable) | 2.15% funding fee (waived for 10%+ disability) | 1.75% MIP (financeable) | None |
| Annual mortgage insurance | 0.35% of loan balance | None | 0.55% of loan balance (life of loan) | PMI (cancels at 20% equity) |
| Credit minimum | 640 (most lenders) | 580–620 | 580 | 620 |
| Income limits | Yes — by county | None | None | HomeReady: 80% AMI |
| Property location | USDA-eligible areas only | Anywhere | Anywhere | Anywhere |
| Who it beats | FHA on ongoing costs; VA if no VA eligibility | Everything for eligible buyers | Conventional for low credit/low down | FHA if 620+ credit and income stable |
Decision framework:
- VA-eligible buyer: VA wins in almost every scenario — zero down, no ongoing MI, and the 4% seller concession allowance. USDA matters only if VA benefit is unavailable or exhausted
- Non-VA buyer with USDA-eligible property and qualifying income: USDA beats FHA on ongoing costs (0.35% vs 0.55% annual MI) and beats conventional 3% down on upfront cash requirements. Run USDA vs conventional side-by-side for buyers with 640+ credit — at higher loan amounts the ongoing 0.35% MI cost can exceed the cost of PMI on conventional
- Non-VA buyer without USDA-eligible property: FHA + TSAHC DPA is typically the best zero-down path for Bexar County buyers
USDA and TSAHC — Can They Be Combined?
Yes — with specific conditions. USDA financing can be paired with down payment assistance programs that are structured as grants rather than second liens, in some cases. The key question is whether the DPA program is compatible with USDA’s loan structure requirements. A TSAHC-approved lender experienced in both programs can advise on current USDA + DPA stacking options. This combination is less common than TSAHC + FHA or TSAHC + conventional but is worth exploring for qualifying buyers in USDA-eligible communities who also meet TSAHC income limits. See our TSAHC Home Sweet Texas guide for the full assistance program breakdown.
How to Verify USDA Eligibility — The Three-Step Process
- Check property location eligibility: Go to eligibility.sc.egov.usda.gov → select “Single Family Housing” → enter the specific property address. The map returns eligible or ineligible. Do this for every specific property before making any USDA program decisions. Do not rely on community-level generalizations — eligibility is address-specific and boundaries change with each census update
- Check household income eligibility: Calculate total gross income for all adult household members. Compare against USDA income limits for your specific county and household size at the same USDA eligibility tool. Remember that Comal County limits differ from the national standard
- Work with a USDA-approved lender: Not every San Antonio lender is USDA-approved or experienced in USDA transactions. Brock connects buyers with lenders who regularly close USDA purchases in the specific communities where USDA eligibility is most common — Boerne, Marion, Seguin, Castroville, Bulverde, and Spring Branch
Frequently Asked Questions: USDA Loans in San Antonio
Which San Antonio suburbs qualify for USDA loans?
The most consistently USDA-eligible established communities in the SA metro are Boerne and Kendall County (98%+ of addresses), Marion, Seguin, Castroville, Bulverde, and Spring Branch. New Braunfels has partial eligibility — outer sections may qualify while core urban sections do not. Most inner Bexar County communities (Converse, Universal City, Live Oak, Leon Valley, Alamo Ranch) generally don’t qualify due to urbanization. Always verify your specific address at eligibility.sc.egov.usda.gov — eligibility is address-level, not community-level.
What are the USDA income limits for San Antonio in 2026?
Income limits vary by county. For most Guadalupe County (Schertz, Seguin, Marion) and Kendall County (Boerne) addresses, the standard national limits apply — approximately $119,850 for 1–4 person households and $158,250 for 5–8 person households. Comal County (New Braunfels, Bulverde) applies lower county-specific limits of approximately $90,300 for 1–4 person households and $119,200 for 5–8 person households. USDA counts total household income from all adults — not just the mortgage applicant. Verify current limits at the USDA eligibility tool for your specific county.
How does USDA compare to VA for San Antonio buyers?
VA wins for eligible buyers in almost every comparison — zero down, no ongoing mortgage insurance (versus USDA’s 0.35% annual fee), and the 4% seller concession allowance. USDA matters for buyers without VA eligibility who are purchasing in USDA-eligible communities. For buyers who have both VA eligibility and a USDA-eligible target property, VA is almost always the better tool. The one scenario where USDA can match VA: buyers with 10%+ disability ratings whose funding fee is already waived should compare USDA’s 0.35% annual fee against VA’s zero annual MI — at some loan amounts, VA’s zero ongoing MI cost over the ownership period can save more than the USDA’s lower upfront fee.
Is Boerne really USDA eligible?
Yes — over 98% of Kendall County qualifies geographically for USDA Rural Development financing, including most Boerne-area communities. This surprises most buyers because Boerne doesn’t feel rural — it has a historic main street, established schools, restaurants, and modern subdivisions. USDA eligibility is determined by population density and MSA proximity, not community character. At Boerne’s entry-level prices of $380,000–$480,000, USDA saves qualifying buyers $11,400–$14,400 in down payment versus 3% conventional. Verify your specific address at the USDA eligibility tool and confirm Kendall County income limits with a USDA-approved lender. See our How to Buy in Boerne guide.
Ready to Use a USDA Loan in San Antonio?
Brock Bremmer with eXp Realty verifies USDA property eligibility as a standard step for buyers targeting Boerne, Marion, Seguin, Castroville, Bulverde, and Spring Branch — and connects qualifying buyers with USDA-approved lenders experienced in these specific communities.
- 📞 Call or text: 210-501-5088
- 📧 Email: [email protected]
- 🌐 Website: brockbremmer.com
- 📅 Schedule a free consultation
Also see: Living in Boerne | Living in Marion | Living in Bulverde | TSAHC Home Sweet Texas | First-Time Buyer Guide