Update, October 2, 2026: the mortgage-rate figures cited below have moved. Freddie Mac's October 1 survey put the average 30-year fixed at 7.28%, up from 6.95% in mid-September, which raises the monthly payment shown in this guide by roughly $95 a month on a median-priced purchase. See our post on mortgage rates above 7% and our 2026 price guide for current payment math.
The cost of living in King of Prussia runs roughly 14% above the national average, and housing is the biggest driver. For buyers, the honest budget question is not just the mortgage: it is property taxes, utilities, groceries, transportation, and childcare added together. Here is what the 2026 numbers say about ZIP 19406 and what those costs mean for a purchase like 340 Anderson Rd.
How Much Is the Cost of Living in King of Prussia?
Third-party trackers put King of Prussia's overall cost of living roughly 14% above the U.S. average. BestPlaces rates ZIP 19406 at about 114 on its cost-of-living index, where 100 is the national baseline, roughly 14% above the U.S. average and about 20% above the Pennsylvania average. Salary.com's 2026 estimate reaches a similar conclusion, about 14% above the U.S. average, with essentials of roughly $2,828 a month for a single person and about $6,227 a month for a family of four. AreaVibes scores the town higher still, near 123. None of these figures is an exact bill; each source weights housing, groceries, utilities, transportation, and healthcare a little differently, so they are best read as a range.
Why Is Housing the Biggest Driver?
Housing is the largest cost in almost every budget, and King of Prussia is no exception. BestPlaces puts the ZIP's housing cost index near 177, far above the national baseline of 100, and renters feel it too: median gross rent in 19406 runs about $2,137 a month, with a typical two-bedroom around $1,960, roughly $530 above the U.S. two-bedroom norm. On the purchase side, Redfin's King of Prussia median sale price is around $570,000, while the 19406 ZIP median sits closer to $533,000. The spread is normal: each tracker measures a different slice of sales, so the ZIP-level figure is the most useful benchmark for buyers comparing specific homes.
What Do Property Taxes Cost in Upper Merion?
Property taxes are where the 2026 picture really matters. Montgomery County's combined millage for Upper Merion is 36.601 mills for 2026: 5.952 for the county (a 5.462 general fund rate plus 0.49 for the community college), 5.619 for the township, and 25.03 for the Upper Merion Area School District, per the county's official millage table. The county share rose about 4% for 2026, adding roughly $36 a year for the average home. Because Pennsylvania taxes are levied on assessed value, and Montgomery County assessments run about 28% to 29% of market value, a $500,000 home typically owes roughly $5,200 a year and a $600,000 home about $6,300, or roughly 1% of market value. That is a real monthly line item, so it belongs in every buyer's budget from the start.
What Do Day-to-Day Costs Look Like?
Beyond housing and taxes, the everyday line items run close to national norms. Third-party estimates put utilities around $150 to $240 a month, groceries at roughly $350 to $400 for a single adult, and transportation near $300 a month. Childcare is the biggest surprise for families, commonly $1,100 to $1,500 per child per month in the area. None of these is a fixed bill; they vary with household size and habits, but they are the right starting points when you build a monthly budget for ZIP 19406.
How Much Do You Need to Earn to Live Comfortably?
Lifestyle calculators that fold all of these costs together suggest a King of Prussia household needs roughly $4,500 in gross monthly income for a single adult, about $6,200 for a couple, and about $8,500 for a family of four to live comfortably at local prices. BestPlaces puts a family's full monthly cost closer to $6,660 to $6,840, while Salary.com estimates a family of four at about $6,227; the ranges differ on what counts as essential versus discretionary spending. On the mortgage side, remember today's rate environment: the 30-year fixed averaged 6.95% in Freddie Mac's survey for the week ending September 17, 2026, which turns a $533,000 median-priced purchase with 20% down into roughly $2,820 a month in principal and interest before taxes and insurance. See our 2026 price guide and mortgage rates near 7% for the full payment math.
How Does King of Prussia Compare to Philadelphia and the Main Line?
King of Prussia is not the cheapest town in the region, and it does not pretend to be. BestPlaces' comparison tool estimates Philadelphia is about 9% cheaper overall, which matters mainly to buyers weighing a city row home against a suburban house. But the higher price tag buys measurable advantages: the Upper Merion Area School District, the East Coast's largest shopping complex, one of Pennsylvania's biggest employment centers at the King of Prussia business park, Valley Forge National Historical Park minutes away, and a roughly 25-minute drive to Center City off-peak. Set against Main Line towns like Bryn Mawr or Wayne, King of Prussia typically delivers comparable access and schools at a more attainable entry point.
What Does All This Mean for a Buyer at 340 Anderson Rd?
For buyers comparing 340 Anderson Rd with newer communities nearby, two cost advantages stand out. First, there is no HOA: no monthly dues and no special assessments, a line that appears on the settlement sheet of many regional communities and never goes away. Second, the home was built with efficiency in mind, spray foam insulation, 2x6 exterior construction, dual-zone Bryant HVAC, and a Superior Walls foundation, which keeps utility bills lower than similarly sized older homes. Your fixed costs at this property come down to mortgage, property tax at Upper Merion's 36.601 mills, insurance, and utilities, and no one else controls what you do with the house. If you would like to see the current numbers on 340 Anderson Rd or tour it in person, contact Craig Lerch for a private showing.
