Sioux County
Iowa · FIPS 19167
According to CFPB HMDA 2024 application volume among U.S. counties, Sioux County ranks #1,728 of 3,210, and #29 of 99 in Iowa.
Mortgage lending activity in Sioux County, Iowa based on lender filings under the Home Mortgage Disclosure Act (HMDA). Data covers all applications received by HMDA-reporting institutions operating in this county during 2024. Why mortgages get denied walks the denial-reason codes that appear in books like this one.
Local mortgage market. Sioux County, Iowa saw 700 HMDA-reported mortgage applications in 2024. Lenders originated 499 of those loans and denied 72, producing a denial rate of 10.3% and an approval (origination) rate of 71.3%. The average loan amount was $195,714 at an average note rate of 6.48%, with applicants self-reporting average annual income of $36K. 59 distinct institutions reported mortgage activity in this county.
Borrower leverage and affordability signal. The loan-to-income ratio averages 5.4x, meaning typical borrowers took on mortgages of about 5.4 times their annual income. That ratio is a rough affordability signal: higher multiples imply tighter monthly budgets and greater exposure to rate or income shocks. See our methodology for how to read the denial rate against a local applicant pool. This page is informational data reporting, not financial, legal, or mortgage advice.
Lender concentration in Sioux County
In Sioux County, lead originator American State Bank funded 30.7% of 499 originated loans, above the county fleet's upper tercile (~16.7% top-1). The top three reporters together hold 53.5% of the book, so a handful of names dominate disclosed volume here.
Counties With Similar Application Volume
Nationwide counties nearest to Sioux County's 700 HMDA applications.
Counties With a Similar Average Loan
Nationwide counties nearest to Sioux County's $195,714 average loan (deduped against volume peers).
Lenders active in Sioux County
American State Bank funded 153 of the 499 loans originated in Sioux County, 30.7% of the county. 59 lenders reported activity here.
| # | Lender | Originated | Market Share |
|---|---|---|---|
| 1 | American State Bank | 153 | 30.7% |
| 2 | Iowa Bankers Mortgage Corporation | 60 | 12.0% |
| 3 | Northwest Bank | 54 | 10.8% |
| 4 | Homeowners Financial Group, LLC | 40 | 8.0% |
| 5 | Peoples Bank | 32 | 6.4% |
Source: Consumer Financial Protection Bureau (CFPB), Home Mortgage Disclosure Act (HMDA) 2024. County FIPS codes per U.S. Census Bureau standards.
Data from FFIEC / CFPB HMDA Snapshot National Loan-Level Dataset (2024). Provided for informational purposes only; does not constitute financial advice for Sioux County borrowers.
Read our methodology - how this data is sourced, computed, and verified.
Every figure on PlainLender is rendered directly from CFPB HMDA federal source data, no number is typed in by an editor. This Sioux County page draws directly on CFPB HMDA federal source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 2026-08-10. HMDA figures are lender-filed application outcomes for a published reporting year - not creditworthiness scores, rate quotes, Loan Estimates, underwriting decisions, or mortgage advice.