Update, October 2, 2026: mortgage rates moved higher after this guide was updated. Freddie Mac's October 1 survey put the average 30-year fixed at 7.28%, up from 7.03% the prior week, and the payment examples below at 6.95% to 7.03% are now roughly a third of a point low: on a $533,000 median-priced purchase with 20% down, principal and interest run about $2,900 a month at 7.28%. See our post on mortgage rates above 7% for the current rate picture.
The most common question prospective buyers ask about King of Prussia is not whether they want to live here, it is how much house they can actually afford. The answer depends heavily on which source you read, because city-wide, ZIP-code, and national trackers each measure prices a little differently. This guide reconciles the latest September 2026 figures, breaks King of Prussia prices down by home type, and shows what monthly payments look like at today's mortgage rates, so you can make an informed decision before you start touring homes.
What Is the Median Home Price in King of Prussia Right Now?
Figures vary by source and time frame. Redfin puts the city-level median sale price for King of Prussia at around $570,000, up roughly 17% from a year earlier. For the 19406 ZIP code specifically, Redfin's most recent month of data shows a median sale price of about $533,000, up 4.4% year over year, with an average sale price near $555,000 and a median of roughly $290 per square foot.
Why Do the Numbers Differ So Much Between Sources?
Because the trackers measure different things. Zillow's average home value for the area is lower, around $454,000, because it blends every home in the market rather than only recent sales. Redfin's city median looks higher than the ZIP median because it aggregates a broader footprint, while a 12-month median smooths out seasonal swings. None of these figures is wrong; they just answer different questions. For comparing a specific purchase, the ZIP-level median sale price is the most useful benchmark for King of Prussia buyers.
What Can You Get at Different Price Points?
King of Prussia's market spans a wide range. Entry-level buyers can find older ranches, split-levels, and condos roughly in the $325,000 to $500,000 range. New-construction townhomes, including communities from Toll Brothers, typically run from about $550,000 to more than $800,000. At the top of the market, custom single-family homes with premium finishes, such as the 4-bed, 3-bath, 3,482-square-foot residence at 340 Anderson Rd built in 2019 with reclaimed brick and designer finishes, command the highest price points. These are third-party estimates compiled across market trackers and area listings, and they vary by source.
What Down Payment Assistance Is Available?
Montgomery County's First Time Homebuyers Program offers down payment and closing cost assistance of up to 10% of the purchase price, capped at $10,000, as a 0% interest 15-year second mortgage. You must be a first-time buyer (or have not owned a home in the past three years), live in the home as your primary residence, complete a housing counseling course, and meet income limits that, per the current county brochure, run from about $83,600 for a one-person household to $119,400 for a four-person household. On top of that, the Pennsylvania Housing Finance Agency (PHFA) offers statewide options including the HOMEstead forgivable down payment loan and Keystone Advantage assistance that can be layered with the county program. Most of these require finishing counseling before you close, so factor that into your timeline.
What Would Monthly Payments Look Like at Today's Rates?
The average 30-year fixed mortgage rate was about 6.95% for the week ending September 17, 2026, then rose to 7.03% for the week ending September 24, 2026, according to Freddie Mac's Primary Mortgage Market Survey, the first weekly average above 7% in about a year. As a working estimate, a $533,000 median-priced home purchased with 20% down would carry a loan of about $426,400, and at a 6.95% rate that works out to roughly $2,820 per month in principal and interest, before property taxes, homeowners insurance, and any private mortgage insurance; at 7.03% the same loan runs about $2,850. Programs that allow 3% down mean a smaller upfront cost but higher monthly payments and PMI, so it pays to run both scenarios with a lender. For the latest rate snapshot and payment math, see our post on mortgage rates near 7%.
Is Now a Good Time to Buy?
King of Prussia remains a competitive seller's market with thin inventory and homes selling quickly, and prices are still appreciating. Mortgage rates ticked up through mid-September, but forecasters including Fannie Mae expect the 30-year to hold in the mid-6% range through 2027, so waiting for a sharp drop is unlikely to pay off. Our good-time-to-buy guide, our look at mortgage rates near 7%, and the Fall 2026 market update cover the full picture.
Can You See a Top-End Example at 340 Anderson Rd?
At the top of King of Prussia's price spectrum sits 340 Anderson Rd, a custom-built 4-bed, 3-bath, 3,482-square-foot home constructed in 2019 with a reclaimed brick facade, a chef's kitchen with Dacor appliances, a spa-inspired primary bath, and no HOA restrictions. It is an example of what the upper end of the market delivers, and it competes with the strongest custom homes in the area. To see how this property fits your budget, or to tour it in person, contact Craig Lerch for a private showing.
