States · Michigan · Saint Clair County

Casco, Michigan.

Typical home $383,868 (+6.2% in a year). Detroit-Warren-Dearborn, MI metro.

What it costs per month · Casco $2,015/mo

to buy the typical home at today's mortgage rate — +$1,095 (+119%) since Jan 2020.

What the home itself did
1 year
Up $22,575 +6%
$361,292$383,868 since Sep 2025
5 years
Up $76,756 +25%
$307,111$383,868 since Sep 2021

Monthly payment to buy the typical home

Home value × that month's 30-year mortgage rate, 20% down, principal and interest. This is the line households feel: prices and rates compound each other.

$500 $1,000 $1,500 $2,000 2002 2006 2010 2014 2018 2022 2026 Casco $2,015 Michigan $1,384 United States $1,922
$500 $1,000 $1,500 $2,000 2002 2010 2018 2026
  • Casco$2,015
  • Michigan$1,384
  • United States$1,922

At the last five years' pace, a typical home here doubles in price every 16 years.

Typical home values in Casco, MI rose 6.2% over the past year — faster than the nation's +1.2%.

Living in Casco, St. Clair County, Michigan

Casco is a township of 3,990 people in St. Clair County. Half its households earn more than $87,538 a year and half less, against $71,270 across St. Clair County; 8% of its people live below the poverty line. 95% of its homes are lived in by their owners and 5% are rented. Unemployment in St. Clair County was 5.3% in August 2026, and the county had 1.3% fewer jobs in 2025 than the year before. The most residents work in manufacturing, then schools and health care.

People 3,990 in the 2020 census; median age 39.4
Household income $87,538 the median, give or take $11,819 · St. Clair County: $71,270
Unemployment 5.3% St. Clair County, August 2026; 4.4% a year before
Homes 95% lived in by their owners; 5% rented

Written by AI Claude Sonnet 5.5 wrote this on 23 October 2026 from the figures here, a list of nearby places and what it knows. It can be wrong or out of date.

What it’s like

The place. Casco is a township in St. Clair County, Michigan, where nearly everyone owns the home they live in. Household incomes run above the county's, and the share of people living below the poverty line is small. Typical home values are high, and the population is somewhat younger than in many rural townships.

Work. Residents work mostly in manufacturing, in schools, hospitals and social care, in the building trades and in shops. Across St. Clair County, some of the largest workplaces are McLaren Port Huron, the Port Huron Area School District and US Farathane. Unemployment across the county is higher than it was a year ago, and the county has lost some jobs over the past year. Commutes are fairly long, and few people work from home.

Things to do. The St. Clair River is a short drive away, as are Kolping Park and Chapel, a park, and the Belle River. A longer drive leads to Algonac State Park, a protected area, and to the Thomas Edison Depot Museum. Winters are cold and snowy, with January the coldest month, and summers are warm.

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  • 1,521households
  • 20%of adults have a degree
  • 8%below the poverty line
  • 28 mintypical commute
  • 7%work from home

What residents work in

  • Manufacturing19%
  • Schools, hospitals and social care16%
  • Building trades15%
  • Shops (retail)11%
  • Other services8%
  • Restaurants, hotels and entertainment8%

Employed residents by industry, from the Census survey. St. Clair County had 41,734 jobs in 2025, 1.3% fewer than the year before (Bureau of Labor Statistics).

Weather through the year

Average daily high and low for each month: coldest in January, 30° and 16°; warmest in July, 83° and 62° 20° 40° 60° 80° J 30° 16° F M A M J J 83° 62° A S O N D
Average daily high and low for each month: coldest in January, 30° and 16°; warmest in July, 83° and 62° 20° 40° 60° 80° J 30° 16° F M A M J J 83° 62° A S O N D

Coldest in January, with highs near 30° and lows near 16°; warmest in July, with highs near 83° and lows near 62°. About 47 inches of snow and 36 inches of rain and melted snow a year.

Average daily high and low, 1991–2020, at the Richmond Nnw weather station, 10 miles away (NOAA).

Largest workplaces in St. Clair County

  1. Mclaren Port HuronGeneral hospital956FTE
  2. Port Huron Area School DistrictSchool district884FTE
  3. Anchor Bay School DistrictSchool district641FTE
  4. US FarathaneDoors and door frames, plastics, manufacturing549
  5. East China School DistrictSchool district518FTE
  6. St. Clair County RESA SchoolsSchool district515FTE
  7. Magna Electric Vehicle StructuresFuel pumps, electric, automotive, truck, and bus, manufacturing465
  8. Alta Gas SEMCO EnergyDistribution of natural gas424

Staff on average in 2025, as each workplace reported it to OSHA with its injury records: 119 workplaces with 20 or more staff, 13,477 people in all across the county; Casco has two of its own. Hospitals come from their Medicare cost reports (CMS, 2023) and school districts from the Common Core of Data (NCES, 2023–24); FTE marks full-time equivalent staff. Not listed: many offices and banks, which need not report to OSHA; military bases, whose staff OPM withholds; and, in about half the states, city and county governments.

Natural hazards

  1. Cold wavesRelatively high
  2. Ice stormsRelatively high
  3. Strong windRelatively high
  4. TornadoesRelatively moderate
  5. Inland floodingRelatively moderate

FEMA’s National Risk Index (December 2025) rates the risk each natural hazard poses to the people, buildings and farms across St. Clair County, against the rest of the country; all of them together, relatively moderate. It is meant for planning, not a substitute for a local risk assessment or a flood map: FEMA’s index.

From the U.S. Census Bureau’s 2020 census and its American Community Survey (2020–2024 five-year estimates), and the Bureau of Labor Statistics. A survey, so each figure has a margin of error, and figures it is not sure of are left out. More on St. Clair County and the Detroit-Warren-Dearborn, MI metro.

Casco home values

Zillow measures a city over its municipal boundary. Against the state and national figures, mid-tier homes, smoothed and seasonally adjusted.

$150,000 $200,000 $250,000 $300,000 $350,000 2018 2020 2022 2024 2026 Casco $383,868 Michigan $263,760 United States $366,157
$150,000 $200,000 $250,000 $300,000 $350,000 2018 2022 2026
  • Casco$383,868
  • Michigan$263,760
  • United States$366,157

When this market ran hot

Each cell is that month's year-on-year home-value growth. Read left to right, top row is the latest year — the 2021–22 band is the boom.

JFMAMJJASOND
2026
2025
2024
2023
2022
2021
2020
2019
2018
falling flat warming hot overheating runaway

Market heat, inside the city limits

Homes for sale

Active for-sale inventory. More supply hands power to buyers.

5 6 7 2026 Casco 6
5 6 7 2026
  • Casco6

Zip codes with a Casco address

A different geography, not a breakdown. The figure above covers the municipality; these zips cover everywhere the Post Office calls Casco — often including townships beyond the city limits. Both come straight from Zillow, and they are not expected to average out.

Zip codes in Casco