Greencastle sits in the far southern corner of Franklin County, about three miles north of the Mason-Dixon line. It is a borough of just 4,251 people (2020 census) completely surrounded by Antrim Township, which has grown to 15,778 residents, up roughly 26 percent since 2000. That pairing explains most of what makes this market interesting: a compact historic town with a true square in the middle, ringed by farmland that is steadily filling in with new neighborhoods.
We sell homes here week in and week out from our office up the road in Chambersburg, and Greencastle buyers tend to fall into two camps. Half are local families chasing the school district. The other half are Maryland commuters who did the math. This guide covers both.
Greencastle Borough vs. Antrim Township: Know the Difference
When people say "Greencastle," they usually mean the whole 17225 ZIP code, but the borough and the township are separate municipalities with different housing stock and different tax bills.
The borough is the walkable part: brick sidewalks, Victorian and early 1900s homes on streets like East Baltimore and North Carlisle, and Center Square where US 11 and PA 16 cross. You can walk to the library, the coffee shop, and the Friday night events downtown. Lots are small, houses are older, and prices are generally the most affordable in the area.
Antrim Township wraps around the borough on all sides and runs south to the Maryland line. This is where nearly all the new construction is happening, on quarter-acre and larger lots, and where you will find the area's big employers along the I-81 corridor. The township levies no township real estate tax at all, which gives it one of the lowest total property tax rates in Franklin County. We break down exactly how those bills compare in our guide to Franklin County property taxes.
Greencastle-Antrim Schools: The Number One Reason Families Move Here
Ask ten Greencastle buyers why they picked the town and eight will say the schools. The Greencastle-Antrim School District earns an overall grade of A minus from Niche, which ranks it #93 out of 494 Pennsylvania school districts for 2026. That puts it comfortably in the top fifth of the state and makes it a standout in Franklin County.
The district serves about 2,911 students with a 17 to 1 student-teacher ratio and a 94 percent graduation rate, per Niche's 2026 data. State testing shows 61 percent of students proficient or better in reading and 54 percent in math, both ahead of Pennsylvania averages.
A detail newcomers love: all four schools (Greencastle-Antrim Primary, Elementary, Middle, and High School) sit together on one campus off South Ridge Avenue, an easy drive or bike ride from most of the borough. Kids can go kindergarten through graduation without ever changing campuses, and siblings at different schools share one pickup line.
What Homes Cost in Greencastle in 2026
Greencastle is not the bargain it was five years ago, but it still undercuts everything south of the line. Here is where the numbers stood heading into 2026:
- Median sale price: $248,500 in Greencastle as of November 2025, per Redfin, down 7.2 percent year over year after a hot 2024. Homes averaged 35 days on market, and Redfin scores the market "somewhat competitive" at 67 out of 100.
- The wider 17225 ZIP, which includes Antrim Township, showed a median sold price around $267,000 for the year ending May 2026, with about 304 sales, according to RealtyTrac market data.
- Listing prices are climbing faster than sold prices. The median list price in 17225 reached roughly $365,000 in spring 2026, a jump of more than 20 percent in a year. That gap reflects the wave of new construction hitting the market at higher price points.
New Construction in Antrim Township
Builders have discovered Antrim Township in a big way. Ryan Homes is building The Greens of Greencastle, 34 single-family homes on quarter-acre-plus lots around the Greencastle Greens golf course, priced from about $490,000 to $550,000 with 4,000-plus square feet. Gemcraft Homes is active at Paradise Estates, and several smaller local builders are putting up homes scattered through the township. If you want a 2026-built house with a three-car garage 15 minutes from Hagerstown, this is where it exists.
Resale buyers benefit too: the new supply keeps pressure off the under-$300,000 market, where solid borough homes and 1990s township ranchers still trade regularly. You can see what is currently available on our listings page, and our team previews Greencastle inventory constantly.
The Commute: I-81 Exit 3 and the Maryland Line
Greencastle is the first real Pennsylvania town on I-81 north of Maryland, and Exit 3 (US 11, Greencastle) is the town's front door. Exit 5 (PA 16) serves the east side. That location drives the local economy in both directions.
Going south: Hagerstown is 11 miles down US 11, a 15 to 20 minute commute to employers like Meritus Medical Center, the Volvo Group powertrain plant, and the distribution centers ringing the city, plus the Valley Mall corridor for shopping. Frederick is about 45 minutes via I-81 and I-70, which puts Greencastle within reach for DC-adjacent workers who go into the office two or three days a week. Plenty of our buyers work in Frederick or ride MARC from there and bank the housing savings.
Staying local: Antrim Township has serious employment of its own. Antrim Commons Business Park at Exit 3 covers 200 acres planned for over 4 million square feet of industrial and commercial space, anchored by the Norfolk Southern Franklin County Regional Intermodal Facility. Manitowoc's Grove crane operation at Shady Grove has been the township's signature manufacturer for generations. And Chambersburg, the county seat, is 11 miles north; our moving to Chambersburg guide covers that end of the county.
Taxes: The Math for Maryland Commuters
This is the part Maryland transplants ask about first, so here it is straight.
Income tax is where Pennsylvania wins. PA and MD have a reciprocal agreement, so if you live in Greencastle and earn wages in Hagerstown, you pay Pennsylvania's flat 3.07 percent state income tax plus a local earned income tax (typically around 1 percent), not Maryland's graduated state rates stacked with a county income tax. Every Maryland county levies a local income tax on its residents; Pennsylvania's flat structure usually saves dual-state households real money, especially at higher incomes.
Property taxes are closer than you might expect. Washington County, MD carries an effective rate around 0.88 percent with a median bill near $2,083, per Ownwell's 2026 data. A $300,000 home in Antrim Township runs roughly $3,400 a year at the township's 2026 total millage, helped by the fact that Antrim adds zero township tax. The difference is that your $300,000 buys noticeably more house on the Pennsylvania side, and PA charges no sales tax on groceries or clothing.
Retirees get an extra edge: Pennsylvania does not tax Social Security, 401(k), IRA, or pension income for those over 59 and a half. That is a major reason we cover Greencastle in our guide to retiring in Franklin County.
Old Home Week and Life on the Square
Every town claims community spirit. Greencastle scheduled it. Old Home Week has run every three years since the early 1900s, born from a 1902 letter by businessman Philip Baer calling Greencastle's "old boys" home for a reunion. For one week in August, former residents pour back into town for parades, concerts on the square, class reunions, home and church tours, ball games, and fireworks.
The 42nd Old Home Week in August 2025 drew more than 5,000 people. The 43rd is set for summer 2028, and locals plan around it years ahead. There is nothing else quite like it in Pennsylvania, and it tells you a lot about a town when people fly across the country to attend a triennial homecoming.
The rest of the calendar is not empty, either. Center Square hosts Heritage Christmas events in December, sidewalk sales and car shows in the warm months, and the shops and restaurants along Baltimore and Carlisle streets keep downtown busy. The school district even runs Tayamentasachta, its own environmental study center on a working farm at the edge of town, where every Greencastle-Antrim kid ends up learning at some point.
Who Greencastle Fits (and Who It Does Not)
Greencastle is a strong match if you are:
- A family prioritizing schools and willing to trade big-city amenities for a one-campus district with a 94 percent graduation rate.
- A Hagerstown, Frederick, or I-81 corridor commuter who wants more house per dollar and a simpler tax picture.
- A buyer who wants new construction without Washington County MD or Frederick County price tags.
- Someone who genuinely wants small-town life, where the bank teller knows your name and Old Home Week is a real event on your calendar.
It is a weaker fit if you need nightlife, extensive dining, or transit at your doorstep; for that you will lean on Hagerstown, Chambersburg, or Frederick. And inventory is thin in the most requested slice of the market, so move-in-ready borough homes under $275,000 still draw multiple offers in good weeks.
If you are weighing Greencastle against other Franklin County towns, talk to us. We live and work here, we know which streets flood and which builders finish on time, and every buyer and seller gets our free consultation plus the free moving truck on closing day.
Frequently Asked Questions
Is Greencastle, PA a good place to live?
Greencastle is a strong fit for families who want a highly rated school district, commuters who work in Hagerstown or along the I-81 corridor, and anyone who values small-town traditions like Old Home Week. The Greencastle-Antrim School District earns an A minus grade from Niche and ranks in the top fifth of Pennsylvania districts, and home prices remain well below Maryland suburbs a short drive south.
How far is Greencastle, PA from Hagerstown, MD?
About 11 miles. US Route 11 runs straight from Greencastle's square into downtown Hagerstown, and I-81 Exit 3 puts you on the interstate in minutes. Most commuters make the drive in 15 to 20 minutes. Frederick is roughly 45 minutes via I-70, which is why some DC-area workers use Greencastle as a lower-cost home base.
How good is the Greencastle-Antrim School District?
Niche gives Greencastle-Antrim an overall A minus and ranks it #93 out of 494 Pennsylvania districts for 2026. The district serves about 2,900 students across four schools on a single shared campus, with a 94 percent graduation rate. It is consistently one of the top-rated districts in Franklin County.
What is Old Home Week in Greencastle?
Old Home Week is a homecoming celebration held every three years since the early 1900s, when former residents return for a week of parades, concerts on the square, class reunions, home tours, and fireworks. The 42nd Old Home Week in August 2025 drew more than 5,000 people. The next one is scheduled for summer 2028.
How much does a house cost in Greencastle, PA in 2026?
Redfin put Greencastle's median sale price at $248,500 as of late 2025, and market data for the wider 17225 ZIP code showed a median sold price around $267,000 in spring 2026. New construction in Antrim Township runs higher, with new single-family communities listing from the high $300s to the $490,000 to $550,000 range at The Greens of Greencastle.
Do Greencastle residents who work in Maryland pay Maryland income tax?
Generally no on wages. Pennsylvania and Maryland have a reciprocal income tax agreement, so a Greencastle resident with a W-2 job in Hagerstown typically pays Pennsylvania's flat 3.07 percent state income tax plus a small local earned income tax, instead of Maryland's graduated state rates and county income tax. File the Maryland exemption form with your employer so MD tax is not withheld.