Cottage Grove, WI · Updated Oct 2026

What a Cottage Grove home costs each year

Property tax, water, trash and energy from public rates. Look up your address to make it yours, and see how to pay less.

Suggestions as you type come from Google; the lookup uses free public map services to find who serves it. Not stored unless you save your house.

Example · a Cottage Grove house

$12,316a year · $1,026 a month

Starts at $315,000 of value before exemptions. Typical use.

Property tax$7,924
2.516% of $315,000
Electricity and gas$2,470
673 kWh a month $1,566 · 62.58 therms $904
Water and sewer$1,737
7,000 gallons a month on Cottage Grove Water and Sewer Utility: water $61, sewer $83 a month
Trash$185
Standard 95-gallon trash and recycling carts, $15 a month
Home insuranceNot included
We don't have a typical premium for this city yet. Add yours with Adjust.

A typical Cottage Grove house costs about $12,300 a year: $7,920 property tax and charges, $1,740 water and sewer, $190 trash, $2,470 electricity and gas; home insurance is not included (no typical premium yet). Estimated from public rates, not anyone's actual bill.

Rates checked Oct 31, 2026. Insurance: what you enter, or a typical premium until you do. Sources are listed at the bottom.

Ways to pay less

Nothing here applies to every house automatically. These are worth checking:

One-time $50 sewer credit for a new lawn$50 one time
New residence
How: Residents establishing the initial lawn at a new residence can ask in writing for a one-time $50.00 sewer credit.

Money dates

December 2026in 46 daysTax bills for 2026 are received in December 2026.
January 31in 88 daysThe first installment of property taxes is due by January 31; interest and penalties of 1.5% per month accumulate from February 1.

Who serves this house

Water: Cottage Grove Water and Sewer Utility; Monthly water service charge for a 5/8 or 3/4 inch meter plus the monthly public fire protection charge; volume charge per 1,000 gallons.
Property tax: 2.52% of value; 2025 tax year, Village of Cottage Grove in the Monona Grove School District
Garbage: Pellitteri Waste Systems; Residential trash and recycling provider for the Village
Sewer: Cottage Grove Water and Sewer Utility; Billed monthly with water
Electricity: Alliant Energy; Electric and gas service in Cottage Grove
Gas: Alliant Energy; Electric and gas service in Cottage Grove
Schools: Monona Grove School District; School district for most Village parcels (2,832 parcels; 28 are in Sun Prairie schools)

Pay or manage your bills

Your water

Source: Three active groundwater wells, 530 to 675 feet deep.
TTHM: Level found 4.7 ppb against a limit of 80 ppb; no violation.

Other WI cities

Milwaukee home costs Waukesha home costs Oshkosh home costs Brookfield home costs Wausau home costs Oak Creek home costs Muskego home costs De Pere home costs Howard home costs Pleasant Prairie home costs Germantown home costs Oconomowoc home costs South Milwaukee home costs Marshfield home costs Fox Crossing home costs Menasha home costs Kaukauna home costs Ashwaubenon home costs Weston home costs Glendale home costs Shorewood home costs Greenville home costs Allouez home costs Suamico home costs Stoughton home costs Sussex home costs Grafton home costs Brown Deer home costs Oregon home costs Waupun home costs Monroe home costs New Richmond home costs Windsor home costs Green Bay home costs Madison home costs Sheboygan home costs New Berlin home costs Beloit home costs Stevens Point home costs River Falls home costs Beaver Dam home costs Cudahy home costs Pewaukee home costs Two Rivers home costs Hartland home costs Reedsburg home costs Appleton home costs Shawano home costs Portage home costs Delavan home costs McFarland home costs Plymouth home costs Mukwonago home costs Rhinelander home costs Jackson home costs Antigo home costs Hales Corners home costs Jefferson home costs Kimberly home costs Rib Mountain home costs Delafield home costs New London home costs Waupaca home costs Waterford home costs Milton home costs Berlin home costs Dodgeville home costs East Troy home costs Fox Point home costs Elm Grove home costs Evansville home costs Columbus home costs

How these numbers are made

Property tax uses the Village of Cottage Grove's 2025 net rate of 25.155045 per $1,000 (Village 7.821216, Dane County 3.975531, MATC 0.853588 and Monona Grove schools 14.454280 less the 1.94957 school credit) on the Dane County table, applied to the Village's $315,000 average assessed home. That gives about $7,924, matching the Village's own 2025 figure before credits.
2026 rates are not out yet and the 2026 revaluation will raise assessed values and lower the rate; the 2025 pair of rate and assessed value is used together so they stay consistent. Lottery and gaming and first dollar credits on the bill are not subtracted.
Trash and recycling are on the property tax bill: the Village's 2025 sample bill shows a $125.40 trash charge and $59.88 recycling charge ($185.28 a year, $15.44 a month), counted once and not in the tax rate.
Water adds the $11.60 service charge and $16.50 public fire protection charge for a 5/8 or 3/4 inch meter, with tiers per 1,000 gallons at 4,000 and 8,000 gallons a month, as on the Village rates page. The Village is pursuing a water rate case with an expected increase of about 27.7% in late 2026 or 2027; it is not yet in effect.
Sewer is $19.84 plus $9.45 per 1,000 gallons, the 2026 rates in the Village's 2026 sewer rate study.
Electric and gas use Alliant's Wisconsin Power and Light residential rates effective 1/1/2026; typical electric use is the 2024 EIA average per Wisconsin Power & Light customer and typical gas use is Alliant's 751 therms a year. Gas supply varies monthly.
Nothing here is legal, tax or insurance advice.

Sources

Common questions about Cottage Grove house costs

What is the property tax rate in Cottage Grove?

About 2.52% of the value before exemptions a year (2025 tax year, Village of Cottage Grove in the Monona Grove School District), plus flat charges on the same bill.

How much is property tax on a $500,000 house in Cottage Grove?

About $12,578 a year on $500,000 of the value before exemptions.

How much is the water bill in Cottage Grove?

About $145 a month for water and sewer at typical use (7,000 gallons a month) on Cottage Grove Water and Sewer Utility.

How much does trash pickup cost in Cottage Grove?

$15 a month for a house.

When is property tax due in Cottage Grove?

January 31: The first installment of property taxes is due by January 31; interest and penalties of 1.5% per month accumulate from February 1.

How much does a house in Cottage Grove cost to run each year?

All Wisconsin cities All cities