Mortgage Rates in Sioux Falls
Compare 30-year fixed mortgage rates from credit unions serving Sioux Falls, South Dakota. Today's best rate: 5.750% APR. Zero affiliate bias - rates ranked by true cost.
Sioux Falls mortgage rates range from 5.750% to 7.125% APR for 30-year fixed loans. Data from 30 credit unions in South Dakota, updated August 2026.
Source: RateAPI.dev
Top Credit Unions for Sioux Falls Mortgages
Ranked by lowest APR. Based on a $400,000 loan over 30 years.
Rate Data Coming Soon
We're actively collecting mortgage rates from credit unions serving Sioux Falls. Check back soon!
15-Year Fixed Rates for Sioux Falls
How to Get the Best Mortgage Rate in Sioux Falls
Credit unions serving Sioux Falls often offer lower mortgage rates than traditional banks because they're member-owned non-profits. Here's how to qualify for the best rates:
Check Your Credit Score
Scores above 740 typically qualify for the best rates in Sioux Falls. Most credit unions require a minimum of 620-680 for mortgages.
Join a Credit Union
Many credit unions serving Sioux Falls have flexible membership requirements. Some are open to anyone who lives, works, or worships in South Dakota.
Compare Multiple Lenders
Even a 0.25% difference in APR can save you thousands over the life of your Sioux Falls home loan. Compare at least 3-5 lenders.
Consider Points
Paying points upfront can lower your rate. This makes sense if you plan to stay in your Sioux Falls home long-term.
Credit Unions Based in Sioux Falls
4 credit unions are headquartered in Sioux Falls. Local membership is often the easiest to qualify for — many accept anyone who lives or works in the area.
Frequently Asked Questions
Common questions about mortgage rates in Sioux Falls
As of August 2026, 30-year fixed mortgage rates in the Sioux Falls metro area range from 5.750% to 7.125% APR across credit unions serving South Dakota. The median rate is 6.757% APR.
To get the best mortgage rate in Sioux Falls: 1) Compare rates from multiple credit unions serving the Sioux Falls metro area, 2) Improve your credit score above 740, 3) Consider paying points upfront for a lower rate, 4) Shop within a 14-day window to minimize credit score impact, 5) Get pre-approved before house hunting.
Yes, credit unions serving Sioux Falls, South Dakota typically offer lower mortgage rates than traditional banks. Because credit unions are member-owned non-profits, they return savings to members through lower rates and fees. On a $400,000 mortgage, this can save $50,000-$100,000 over 30 years.
For the best mortgage rates in Sioux Falls, aim for a credit score of 740 or higher. Scores between 700-739 qualify for good rates, while 620-699 may face higher rates. Credit unions in South Dakota have varying requirements, so compare options even with lower scores.
How much house you can afford in Sioux Falls depends on your income, debts, down payment, and current mortgage rates. Most lenders prefer your total housing costs (including taxes and insurance) to be below 28% of gross income. Use current Sioux Falls rates to calculate your maximum affordable home price.
Mortgage Rates in Other South Dakota Cities
Mortgage Rates by State
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