What Oakland County property tax looks like
Among the 30 counties covered here, Oakland County has the 10th highest effective rate and the 15th highest median bill. Every $100,000 of value carries about $1,324 of tax a year at this rate.
On a $400,000 purchase that comes to roughly $5,296 a year, or $441 a month. Priced at the Michigan average rate instead, the same home would cost $15 a month less in tax.
Local assessors in each city and township value property in Oakland County; the county's equalization department then adjusts them to a common standard.
Example monthly payment at the median home value
Borrowing $256,320 against a $320,400 Oakland County home (20% down, 6.5% for 30 years, illustrative rather than quoted) works out as follows.
| Component | Per month |
|---|---|
| Principal and interest | $1,620 |
| Property tax | $354 |
| Homeowners insurance | $150 |
| Mortgage insurance (PMI) | $0 |
| Total | $2,124 |
Property tax is 16.6% of the $2,124 total, so a lender escrowing it would set aside about $354 each month toward the Oakland County bill.
How reliable this figure is
For Oakland County the Census Bureau reports a 90% margin of error of ±$35 on the $4,241 median tax and ±$2,411 on the $320,400 median value, so the 1.324% rate is a county-wide average rather than the rate on any one bill.
These medians describe today's owners, not today's buyers. How Michigan values and caps a home, including what resets on sale, is set out on the Michigan page.
Counties with a similar rate
- St. Louis County, MO1.225%
- Hennepin County, MN1.152%
- Franklin County, OH1.547%
- Allegheny County, PA1.569%
Also in Michigan: Wayne County (1.642%).
Frequently asked questions
What is the property tax rate in Oakland County, MI?
The effective rate is 1.324%, which is the median real estate tax paid ($4,241) divided by the median home value ($320,400) in the Census Bureau's 2019-2023 estimates.
How much is property tax on a $400,000 home in Oakland County?
At this county's effective rate the figure is about $5,296 a year, or $441 a month. That is $15 a month more than the Michigan average rate of 1.28% would give on the same price.
How much of a Oakland County monthly mortgage payment is property tax?
On a $320,400 home with 20% down at 6.5% over 30 years, property tax is about $354 of a $2,124 total monthly payment, or 16.6%.
Is property tax in Oakland County high compared with the rest of Michigan?
Oakland County's 1.324% is 0.04 percentage points above the 1.28% Michigan average, and its $4,241 median bill ranks 15th of the 30 counties covered here, with the rate ranking 10th.
Source and method
Census American Community Survey, ACS 2019-2023 5-year estimates, released December 2024. For Oakland County: B25103 median tax $4,241, B25077 median value $320,400, B25003 382,057 owner-occupied homes. Formulas are on the methodology page; every result is an estimate, not a quote or tax advice.