When are property taxes due in Lake County, South Dakota?

Lake County property taxes are due April 30. A second installment is due October 31. This deadline applies to all counties in South Dakota.

What is the penalty for late property tax payment in Lake County, South Dakota?

The late payment penalty in Lake County is 10% annual (0.833% monthly).

How do I pay Lake County, South Dakota property taxes?

You can pay Lake County property taxes via Online, mail, in-person.

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Lake County Property Tax Due Date

South Dakota

(605) 256-7618

2026 Property Tax Due Dates

Official Source

Installment 1

April 30

First half

Installment 2

October 31

Second half

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Penalty: 10% annual (0.833% monthly)Grace period: None

Payment Methods

Online, Mail, In-Person

Lake County Treasurer

Phone

(605) 256-7618

Office Address

200 E Center St.
Madison, SD 57042

Get Directions

How to Pay

Online

Pay using credit card or e-check

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By Mail

Mail check payable to Lake County Treasurer

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In Person

Visit the Treasurer's office — 200 E Center St., Madison SD 57042

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Other Counties in South Dakota

Aurora Beadle Bennett Bon Homme Brookings Brown Brule Buffalo

View all South Dakota counties →

About Lake County

Lake County is a county in the U.S. state of South Dakota. As of the 2020 census, the population was 11,059. Its county seat is Madison.

Source: Wikipedia — content available under CC BY-SA 4.0

Related Resources

CountyRollCounty Office Directory

Find the assessor, treasurer & recorder for Lake

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Property Tax FAQ Tax Calendar

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We'll email you 2 weeks before your property taxes are due.

Due dates shown are for reference only. Contact your county treasurer's office to confirm official deadlines before making payments.