Cost to Own
United States › Pennsylvania › Dauphin County › Williamstown Population 1,289 Data vintage ACS 2023 5-Year Rates updated 2026-10-29
The part nobody budgets Even with the mortgage fully paid off, the median home here still costs $468 a month in taxes, insurance, utilities and upkeep. See the full Dauphin County picture

Total monthly cost of ownership

Cost to Own a Home in Williamstown, Pennsylvania

A $95,000 home here costs

$986

per month, all in, with 20% down at today's 7.24% 30-year fixed rate. By the 28% rule that takes a household income of about $42,500 a year.

P&I 53%Tax 11%Insurance 3%Utilities 25%Upkeep 8%

A standard mortgage calculator would have told you $518. The real number is $468 higher every month, 90% more than the payment most buyers budget for.

Compare Dauphin County with anywhere in America · full county breakdown

Small-place caveat: the Census publishes these figures for Williamstown from a five-year rolling sample, and with about 1,289 residents that sample is small. The median home value here carries a much wider margin of error than a big-city figure does, so treat it as indicative rather than exact. The Dauphin County figures are drawn from a far larger sample if you want a steadier number.

Williamstown median: $95,200
Under 20% adds PMI
Freddie Mac PMMS
PA average household

Where every dollar goes

Only the first line is a mortgage payment. Change any assumption above and every figure below recalculates.

Principal & interest30-year fixed, $76,000 borrowed $518
Property tax1.404% effective rate for Williamstown itself $111
Homeowners insurancePennsylvania averages $1,014/yr (NAIC), or 0.401% of home value $32
Electricity21.77ยข/kWh, Pennsylvania residential average, EIA $178
Water, sewer & trashUS household average $68
Maintenance reserve1% of home value per year $79
Total monthly $986

Williamstown against Dauphin County and Pennsylvania

MeasureWilliamstownDauphin County
Median home value$95,200$222,300
Median property tax$1,337$3,171
Effective tax rate1.404%1.426%
Median gross rent$917$1,153
Population1,289287,484

The weather behind that power bill

Williamstown sits in Dauphin County, which averages a high of 83.7°F in its hottest month and a low of 20.0°F in its coldest, with 50.85" of precipitation a year and 29% of it in a single three-month stretch. That climate drives 642 cooling and 5,860 heating degree days, which is what sets the $178 electricity line above.

See the full climate breakdown for Dauphin County , month by month temperatures, rainy season timing, snowfall and heating and cooling costs.

Other cities in Dauphin County

Full Dauphin County cost breakdown · Every county in Pennsylvania

Talk to someone who works this market

These are Williamstown averages. What one specific house costs to own, or what it would sell for today, depends on the street and the condition of the place. We will connect you with one licensed local agent who works Williamstown every week. Free, no obligation, and we never sell your details to a list.

I'm looking to buy in Williamstown I already own here and may sell

Common questions

How much does it cost to own a home in Williamstown?

A $95,000 home in Williamstown, Pennsylvania costs approximately $986 per month with 20% down at 7.24%. That is $518 principal and interest, $111 property tax, $32 homeowners insurance, $246 utilities and $79 set aside for maintenance.

What is the property tax rate in Williamstown?

Williamstown has an effective property tax rate of 1.404%, based on a median home value of $95,200 and median real estate taxes of $1,337. That is lower than the Dauphin County average of 1.426%.

What is the average home price in Williamstown?

The median owner-occupied home value in Williamstown, Pennsylvania is $95,200, against $222,300 across Dauphin County.

Is it cheaper to rent or buy in Williamstown?

Median gross rent in Williamstown is $917 a month, against $986 to own the median home all in. Renting costs less month to month here, though renting builds no equity.

What salary do you need to buy a home in Williamstown?

Using the standard 28% rule, housing costs at no more than 28% of gross income, buying the median home in Williamstown, Pennsylvania at today's rate takes a household income of roughly $42,500 a year. That covers the full $986 monthly cost, not just the mortgage payment.

Sources & methodology

  • Median home value, real estate taxes, gross rent and population for Williamstown, US Census Bureau, American Community Survey ACS 2023 5-Year, place-level tables.
  • Homeowners insurance, NAIC average premium for Pennsylvania.
  • 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.

Full methodology