Dubuque and Tri-State Mortgage Hub: Asbury, Peosta and IA vs WI/IL Property Tax Comparisons — Iowa Home Unpacked
Updated October 2026
Dubuque-area buyers may compare an established hillside home with newer construction in Asbury or Peosta, a property in Dyersville, or a house across the Wisconsin or Illinois border. A useful comparison needs more than matching sale prices. Taxes, title costs, terrain, insurance and commuting can change the financial picture substantially.
Build a three-state ownership comparison
Start with actual tax bills and identify which exemptions belong to the current owner. Iowa's residential rollback generally limits the assessed value subject to taxation to roughly 46%–47%, before applicable adjustments. Wisconsin and Illinois use different systems, so comparing assessment percentages alone can be misleading.
The Iowa Homestead Tax Credit applies to the first $4,850 of taxable value. Eligible owners age 65 or older should also review the $6,500 homestead exemption. Details and application requirements are available through the Iowa Department of Revenue.
For each address, record:
- Taxes after anticipated ownership and assessment changes.
- Homeowners insurance and any separate flood coverage.
- Utilities, association dues and routine maintenance.
- Commuting mileage and winter travel considerations.
Enter those property-specific figures into the monthly payment calculator. A lower purchase price across the border may or may not outweigh other recurring costs.
Understand Iowa's abstract and title process
An Iowa purchase typically involves an abstract examination and attorney title opinion. Iowa Title Guaranty provides an alternative to conventional commercial title insurance, with a $175 base certificate charge for qualifying coverage up to $750,000. Confirm the current coverage, endorsements and transaction requirements through the Iowa Finance Authority.
That certificate charge is not the entire title-and-closing bill. Abstract updates, attorney services, settlement work and recording can add separate expenses. Ask for an itemized estimate rather than assuming every title-related service is included in $175.
Use the closing cost estimator to keep those charges distinct from lender fees, prepaid insurance and escrow funding.
Inspect terrain and new-construction assumptions
On a Dubuque hillside, retaining walls, drainage and driveway slope deserve attention beyond interior finishes. For an Asbury or Peosta new build, confirm whether the published tax history reflects a finished house or only the lot. Around Dyersville, check private utilities and septic inspection requirements when shopping outside municipal service areas.
The 2026 conforming baseline is $832,750 in every Iowa county. That creates a consistent loan-size benchmark on the Iowa side, but lender qualification and property suitability still determine the workable budget. Compare financing after accounting for these address-specific costs.
Compare Current Mortgage Rates
Compare current APRs, points, fees, and estimated monthly payments from participating lenders below.
Loan Program Comparison: 2026 Benchmarks
Dubuque and Tri State Mortgage Hub: Asbury, Peosta and IA vs WI/IL Property Tax Comparisons — Choose a mortgage by comparing eligibility, upfront cash and total monthly costs, not the advertised rate alone. Conventional, FHA, VA and USDA serve different borrowers. Confirm county limits, taxes, insurance and lender requirements before comparing personalized Loan Estimates for your household.
Historical 2025 one-unit comparison: conforming $832,750; FHA floor $541,287. County and unit-count limits can differ.
| Loan program | Down payment / equity | 2026 one-unit baseline | Costs and page-specific comparison |
|---|---|---|---|
| Conventional | 3%–5% subject to eligibility | $832,750 | PMI generally below 20% down |
| FHA | 3.5% at 580+; 10% at 500–579 | $541,287 floor | 1.75% upfront MIP; 0.55% annual for >95% LTV, base loan ≤$726,200, term >15 years |
| VA | 0% for eligible borrowers | No VA limit with full entitlement | No monthly PMI; funding fee unless exempt |
| USDA | 0% for eligible borrowers | Income, address and repayment eligibility | Guarantee and annual fees; confirm current schedule |
| Jumbo | Lender-specific cash and reserves | Above applicable conforming limit | Lender-specific pricing and insurance |
| Home Equity / Refinance | Equity and underwriting dependent | Property and lender dependent | Compare closing costs, term and break-even |
Sources: FHFA limits; HUD FHA limits.
Editorial Methodology & Primary Sources
Verification date: Not recorded; check the primary source and lender timestamp before relying on an estimate.
Rate comparisons use participating lender feeds, not a whole-market survey or guaranteed offers. Freddie Mac PMMS is a market benchmark, not a personalized quote. Calculator models rely on published regulatory formulas and disclosed assumptions rather than fabricated first-person loan testing.
Monthly principal and interest use the amortization formula P × r / (1 − (1 + r)−n), where r is the monthly note rate and n is the number of payments; at zero interest use P / n. PITI adds monthly property taxes and homeowners insurance; PMI is separate. APR includes applicable finance charges under Regulation Z and is not the note rate used for payments. Compare lender Loan Estimates for actual APR and fees.
- Consumer Financial Protection Bureau (CFPB) — Loan Estimates, APR and borrower disclosures; Regulation Z.
- U.S. Department of Housing and Urban Development (HUD / FHA) — FHA program guidance.
- U.S. Department of Veterans Affairs (VA) — VA loan eligibility and benefits.
- Freddie Mac Primary Mortgage Market Survey (PMMS) — published rate benchmarks.
- U.S. Census state tax collections — state property tax benchmarks; confirm parcel-specific assessments and exemptions with the state revenue department and local assessor.
- Iowa Finance Authority — state housing finance and property tax authority.
- Iowa Department of Revenue — state housing finance and property tax authority.
The payment snapshot uses illustrative annual taxes of 1% of home price, $1,200 insurance and 0.5% PMI below 20% down, not verified local quotes. Other calculators disclose their inputs and assumptions. Published guidance and lender feeds may change independently; confirm current program rules, taxes and offers before a decision.