Koster Excavating Inc

Excavation contractor in Jenison, MI 49428

About this company

Koster Excavating Inc is listed as an excavation contractor based in Jenison, Michigan, in Ottawa County. Federal motor carrier records list 7 drivers and 11 trucks for the company. It is one of 2 excavation and demolition companies in ZIP 49428.

Other excavation and demolition companies nearby

Gemmen's Caulking And Waterproofing8485 Winona Dr, Jenison

(616) 457-2090

Fleet size

Drivers7

Trucks11

Last federal filing: Jan 2008. Source: FMCSA.

Strong market, crowded fieldArea profitability for excavation and demolition in ZIP 49428

Housing demand78

Sales pace, new listings and new construction. Source: Zillow

Customer spending power74

Household income and home values

Room for another company29

More crowded than 71% of US ZIPs

Scored against every US ZIP. An index of local conditions, not this company's results.

County context

One of 37 excavation and demolition companies in Ottawa County, MI.

269 general contractors in Ottawa County, MI.

All 651 construction companies in Ottawa County, MI.

ZIP 49428 at a glance

Population: 28,209 (678 per sq mi)
Median age: 38
Households: Median income $100,225 · 50% earn six figures
Housing: 87% owner-occupied
Workforce: 64% labor-force participation · 2.1% unemployment

ZIP figures are US Census estimates for the ZIP area, not the company.

Housing market around ZIP 49428

Figures describe the local area, not this company.

Typical home value$366,000+3.3% past year · +106% in 10 years

12-month value outlook+2.6%

Days to sale agreement10Grand Rapids metro · 9 a year ago

New homes permitted, 20251,411Ottawa County

Listings with a price cut31.0%Grand Rapids metro

Sale price vs list100.8%Grand Rapids metro

New construction sales90Grand Rapids metro, Aug · −25% from last year

Source: Zillow (home values, rent, outlook and metro sales), data through Sep 2026. Permits: U.S. Census Bureau.

Typical home value, last 10 years

Source: Zillow Home Value Index, Sep 2026.

Local building angle: Ottawa County permitted 1,411 new homes in 2025, including 482 apartment units. 16% of the homes in this ZIP were built since 2000.

Local figures are estimates from public records and Zillow housing data, updated regularly.