Total monthly cost of ownership
Cost to Own a Home in Northfield, Kentucky
A $486,000 home here costs
$3,737per month, all in — with 20% down at today's 6.66% 30-year fixed rate.
A standard mortgage calculator would have told you $2,499. The real number is $1,238 higher every month — 50% 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.
Northfield against Jefferson County and Kentucky
| Measure | Northfield | Jefferson County |
|---|---|---|
| Median home value | $485,800 | $237,200 |
| Median property tax | $4,500 | $2,023 |
| Effective tax rate | 0.926% | 0.853% |
| Median gross rent | $1,533 | $1,097 |
| Population | 1,104 | 777,392 |
The weather behind that power bill
Northfield sits in Jefferson County, which averages a high of 87.9°F in its hottest month and a low of 27.1°F in its coldest, with 48.12" of precipitation a year and 30% of it in a single three-month stretch. That climate drives 1,543 cooling and 4,150 heating degree days, which is what sets the $135 electricity line above.
See the full climate breakdown for Jefferson County — month by month temperatures, rainy season timing, snowfall and heating and cooling costs.
Other cities in Jefferson County
Full Jefferson County cost breakdown · Every county in Kentucky
Common questions
How much does it cost to own a home in Northfield?
A $486,000 home in Northfield, Kentucky costs approximately $3,737 per month with 20% down at 6.66%. That is $2,499 principal and interest, $375 property tax, $256 homeowners insurance, $203 utilities and $405 set aside for maintenance.
What is the property tax rate in Northfield?
Northfield has an effective property tax rate of 0.926%, based on a median home value of $485,800 and median real estate taxes of $4,500. That is higher than the Jefferson County average of 0.853%.
What is the average home price in Northfield?
The median owner-occupied home value in Northfield, Kentucky is $485,800, against $237,200 across Jefferson County.
Is it cheaper to rent or buy in Northfield?
Median gross rent in Northfield is $1,533 a month, against $3,737 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 Northfield — US Census Bureau, American Community Survey ACS 2023 5-Year, place-level tables.
- Homeowners insurance — NAIC average premium for Kentucky.
- 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.