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Basement Risk Index™ · Community Report

Basement Flood Risk in Groveland Township, Michigan

Groveland Township’s Basement Risk Index is 16/100 (LOWER). 13% of homes here were built before 1960 (U.S. Census ACS 2020-2024, updated Jul 2026), the biggest driver of basement-flooding risk in this region.

16BRI / 100
LOWER RISK
Ranked #97 of 116 metro Detroit communities

Data confidence: C, modeled from housing-age measures; no local flood records integrated yet. How the score is built →

Groveland Township, Michigan carries a Basement Risk Index of 16 out of 100, ranking #97 of 116 metro Detroit communities, far below the metro median of 37. Groveland Township is one of the metro's newer communities, its housing peaking in the nineteen-seventies, well into the era of modern basement waterproofing, the main reason its Index sits toward the lower end of the range. Among Groveland Township and its five nearest neighbors it carries a middle-of-the-pack modeled risk; its housing is mostly owner-occupied and middle-income for the region.

Water in your basement in Groveland Township right now?

  1. Don’t enter standing water if the power is on. Cut it at the breaker only from a dry spot, or call an electrician.
  2. Photograph and video everything before you move or clean up anything, insurance and city claims both turn on this.
  3. Michigan law gives you about 45 days from discovery to file a written damage claim with your sewer authority. Start today.
  4. Once it is safe, call a licensed waterproofing contractor. Do not wait for it to dry on its own.

Groveland Township basement risk at a glance

Basement Risk Index16 / 100 (LOWER)
Metro rank#97 of 116
Homes built before 196013%
Peak building era1970s (22% of homes)
Median year built1985
Median home value$342,500
Median household income$105,959
Owner-occupied89%
Neighborhoods analyzed2

Groveland Township's score is modeled from U.S. Census housing data; no municipal flood records are integrated yet. The Basement Risk Index is built from U.S. Census housing data and documented flood records. See our full methodology.

When Groveland Township was built

Groveland Township's housing is spread across several decades, peaking in the nineteen-seventies at about 22% of today's homes; relatively few of the stock, 13%, predates 1960. These are mid-range homes for the metro, and basements built before the 1960s typically lack the sump pumps, perimeter drain tile, and backwater valves that became standard later, leaving many on their original clay drain tiles.

2020 or later
3%
2010s
9%
2000s
11%
1990s
17%
1980s
19%
1970s
22%
1960s
6%
1950s
7%
1940s
1%
Before 1940
5%

How basement risk varies inside Groveland Township

We score 2 individual neighborhoods inside Groveland Township, and the pattern is skewed to the lower bands: 0 fall in the high or very high band, 0 are elevated, and 2 are moderate or lower. The number that matters is the one for your own block, not the city average.

0Very High
0High
0Elevated
0Moderate
2Lower

What this means for Groveland Township homeowners

Groveland Township scores toward the lower end of the metro range, largely because of its newer housing. Risk is still real on clay soil, so watch for symptoms after heavy rain. Among its immediate neighbors, Groveland Township scores lower than Brandon Township, so the block next door is a better guide than any metro-wide average.

Why Groveland Township homes face basement risk

Basement risk in Groveland Township comes down to two things: how old its houses are and the clay beneath them. With relatively few of its homes, 13%, built before 1960 and the biggest share going up in the nineteen-seventies, many sit on original clay drain tile, and southeast Michigan's dense clay holds water against those foundations rather than letting it drain.

How Groveland Township compares

Groveland Township's Index of 16 ranks #97 of 116 communities region-wide and sits below the metro Detroit median of 37. It runs lower than its nearby neighbor Holly Township.

Does insurance cover it?

Often not. Standard Michigan homeowners policies commonly exclude sewer backup and groundwater unless you carry a specific endorsement. Before the next storm, it is worth reading our guide on whether insurance covers sewer backup in Michigan and checking your declarations page.

What to do about it

  1. Lower risk is not zero risk on the region's clay soil, a free prevention check takes about 30 minutes.
  2. Watch for symptoms after storms; what you see at your own home matters more than any average.
  3. Maintain gutters and grading, the two cheapest protections any Michigan home has.

Hiring in Groveland Township?

We keep public-record profiles of metro Detroit basement waterproofing contractors, drawn from their own listings and Michigan licensing records. No ratings and no pay-to-play, just the record. Browse the contractor records →

See Groveland Township on the full metro Detroit Basement Risk Index map →

Concerned about this score?

We connect Groveland Township homeowners with one licensed, insured basement waterproofing contractor for a free, no-obligation assessment. Your information goes to one local pro, never to lead lists.

Request your free assessment →

See Groveland Township on the interactive metro map →
Read the published methodology →
Browse all 116 communities ranked →

Nearby communities

Brandon Township · 18Holly Township · 23Springfield Township · 11Rose Township · 22Independence Township · 16

Homeowner guides

Does insurance cover sewer backup?What to do when your basement floodsWhat waterproofing costs in metro DetroitHow to choose a waterproofing contractorSump pump costs in MichiganBackwater valves: cost and who needs oneThe 2021 metro Detroit floodsWhat keeps a Michigan basement dry

Frequently asked questions

Where does Groveland Township rank for basement-flood risk among nearby communities like Brandon Township and Holly Township?

Groveland Township scores 16 out of 100, ranking #97 of 116 metro Detroit communities (LOWER risk). Among its five nearest neighbors it carries a middle-of-the-pack risk: Brandon Township scores 18 and Holly Township scores 23.

Are Groveland Township's homes older than those in nearby Brandon Township and Holly Township?

13% of Groveland Township homes were built before 1960 (median year built 1985, with the largest share in the nineteen-seventies). In Brandon Township, 14% predate 1960 (median year built 1984). Older housing means more basements plumbed before sump pumps, weeping tile, and backwater valves were standard.

What is the biggest basement-flood driver in Groveland Township versus Holly Township?

Housing age and clay soil. 13% of Groveland Township homes predate 1960, and southeast Michigan's dense clay holds water against older foundations rather than draining it. Groveland Township scores 16 and Holly Township 23, so the same prevention steps apply, sized to each home.