Total monthly cost of ownership
Cost to Own a Home in Cornelius, Oregon
A $419,000 home here costs
$3,038per month, all in — with 20% down at today's 6.66% 30-year fixed rate.
A standard mortgage calculator would have told you $2,154. The real number is $884 higher every month — 41% more than the payment most buyers budget for.
Where every dollar goes
Only the first line is a mortgage payment. Change any assumption above and every figure below recalculates.
Cornelius against Washington County and Oregon
| Measure | Cornelius | Washington County |
|---|---|---|
| Median home value | $419,000 | $558,500 |
| Median property tax | $3,119 | $4,852 |
| Effective tax rate | 0.744% | 0.869% |
| Median gross rent | $1,475 | $1,773 |
| Population | 13,700 | 600,266 |
The weather behind that power bill
Cornelius sits in Washington County, which averages a high of 82.2°F in its hottest month and a low of 32.6°F in its coldest, with 46.72" of precipitation a year and 50% of it in a single three-month stretch. That climate drives 347 cooling and 5,027 heating degree days, which is what sets the $146 electricity line above.
See the full climate breakdown for Washington County — month by month temperatures, rainy season timing, snowfall and heating and cooling costs.
Other cities in Washington County
Full Washington County cost breakdown · Every county in Oregon
Common questions
How much does it cost to own a home in Cornelius?
A $419,000 home in Cornelius, Oregon costs approximately $3,038 per month with 20% down at 6.66%. That is $2,154 principal and interest, $260 property tax, $60 homeowners insurance, $214 utilities and $349 set aside for maintenance.
What is the property tax rate in Cornelius?
Cornelius has an effective property tax rate of 0.744%, based on a median home value of $419,000 and median real estate taxes of $3,119. That is lower than the Washington County average of 0.869%.
What is the average home price in Cornelius?
The median owner-occupied home value in Cornelius, Oregon is $419,000, against $558,500 across Washington County.
Is it cheaper to rent or buy in Cornelius?
Median gross rent in Cornelius is $1,475 a month, against $3,038 to own the median home all in. Renting costs less month to month here, though renting builds no equity.
Sources & methodology
- Median home value, real estate taxes, gross rent and population for Cornelius — US Census Bureau, American Community Survey ACS 2023 5-Year, place-level tables.
- Homeowners insurance — NAIC average premium for Oregon.
- Electricity price — EIA Electric Power Monthly Table 5.6.A.
- Mortgage rate — Freddie Mac PMMS, refreshed weekly.
- Maintenance (1%/yr) and water and sewer ($68/mo) are national estimates. Every assumption above is editable.