Bank of Sun Prairie (WI) Offers 24-month CD Promo


Deal Summary: 24-month CD Promotion, 2.00% APY, $10k minimum deposit, one-time bump.

Availability: Wisconsin

For a limited time, Bank of Sun Prairie is offering 2.00% APY on its 24-month (and 60-month) CD Promotion. The minimum deposit is $10k, with a $250k balance cap. For obvious reasons, I’m only addressing the 24-month CD Promotion.

The 24-month CD is also offered as an IRA (Traditional, Roth, CESA), earning the same APY with the same funding requirements.

A one-time rate bump option is available for any Bank of Sun Prairie CD that has an opening deposit of at least $5k. The bump option is structured differently than we’re used to seeing: it’s tied to the amount of the CD term remaining when the bump option is exercised. For example, if there are 18 months left before maturity on the 24-month CD when the Bank raises its rates, the bump rate you will be offered will be that of the current 18-month CD.

According to CSR, the Early Withdrawal Penalty is “1% of the amount withdrawn.” CSR also pointed out that the 24-month CD Promotion “has the highest APY of any bank-offered two year CD in the country.”


Headquartered in Sun Prairie, Wisconsin, Bank of Sun Prairie is a locally owned, independent community bank. The Bank’s primary market area is Dane County, but CSR stated that any Wisconsin resident who can come into a branch is welcome to open an account.

Opening the CD Promotion must be done at any of the five Wisconsin branches, located in Cottage Grove (1) and Sun Prairie (4).

As I mentioned in a blog post earlier this week, if you don’t live close to a branch location and are interested in opening a CD Promotion, it would probably be a good idea to speak with one of the Bank’s Personal Bankers before undertaking a trip.

Bank Overview

Bank of Sun Prairie has an overall health grade of "A+" at, with a Texas Ratio of 0.74% (excellent) based on March 31, 2017 data. In the past year, the Bank has increased its total non-brokered deposits by $10.75 million, an excellent annual growth rate of 4.35%. Please refer to our financial overview of Bank of Sun Prairie (FDIC Certificate # 13565) for more details.

The Bank of Sun Prairie received a Wisconsin state charter in 1903, but the Bank actually opened its doors for business in 1897. It was established by local businessman, Thomas Hayden, who served as the Bank’s President until 1911. While many banks went under during the market crash in 1929, Bank of Sun Prairie actually expanded during that time, acquiring Farmers & Merchants Bank. The Bank’s largest growth occurred between 1965 and 1977, when the Bank’s assets more than quintupled, growing from $9 million to $44 million. Bank of Sun Prairie is currently Wisconsin’s 67th largest bank, with assets in excess of $331 million.

How the CD Promotion Compares

When compared to the 244 similar length-of-term CDs tracked by that require a similar minimum deposit and are available within the FOM, Bank of Sun Prairie's 24-Month CD Promotion APY currently ranks second.

The above rates are accurate as of 8/17/2017.

To look for the best CD rates, both nationwide and state specific, please refer to our CD rates table or our Rates Map page.

Related Pages: Madison CD rates, 5-year CD rates


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