Living in Armonk NY: 2027 Prices, Taxes, Schools and Commute

Armonk at a Glance (Updated November 2026)

What is it like to live in Armonk NY?

Armonk is a spread-out, mostly owner-occupied hamlet in the Town of North Castle, known as the home of IBM's world headquarters. It feels more rural than lower Westchester, with larger distances between homes and a small Main Street at its center.

Armonk is not an incorporated village. The hamlet covers about 6 square miles, borders Connecticut and is the seat of North Castle's town government and main library. The Town of North Castle had 12,408 residents at the 2020 Census (North Castle on Wikipedia).

Two large corporate campuses shape the area: IBM's world headquarters and Swiss Re's U.S. headquarters, which has sat on a 127-acre site overlooking Kensico Reservoir since 1999. Whippoorwill Country Club is also in Armonk (Armonk on Wikipedia).

Community life centers on Wampus Brook Park, which hosts the Fol-De-Rol festival and the Frosty Day holiday lighting, with the Frosty Day parade running down Main Street. Smith Tavern, a Revolutionary War site and home of the North Castle Historical Society, is on the National Register of Historic Places, as is the Bedford Road Historic District.

About 88.9% of housing units are owner-occupied, and homes sit farther apart than in the towns closer to the city. Expect to drive for errands, school activities and the train.

How much do homes cost in Armonk in 2027?

The typical sale in Armonk is about $1.67M: that is the Redfin median sale price, all home types, for the 3 months ending August 2026. That was down 5.2% from a year earlier, and the median price per square foot was $469.

According to Redfin's Armonk market page, 18 homes sold in August 2026 and homes went under contract in about 21 days. Redfin's page for ZIP 10504, which covers a larger area, showed a higher August 2026 median of about $1.85M (Redfin ZIP 10504). Zillow's home value index, an estimate of a typical home's value rather than a sales median, was about $1.75M as of September 30, 2026, up 8.1% year over year (Zillow Armonk home values).

Why the figures disagree: with fewer than 20 sales a month, a few large or small closings can swing an all-home-types median noticeably, and each source draws its boundary differently. The year-over-year dip in the Redfin median does not by itself mean values fell. Look at several months and at recent sales of homes like the one you want.

For 2027 buyers, a budget near the median generally points to a single-family house with more land than you would get for the same price closer to the city. The lower price per square foot than Chappaqua ($546) reflects that land-and-space trade.

Before you make an offer, ask about the age of major systems, any well or septic on the property, and the lot's slope and drainage. Those questions matter more on larger, more rural lots than they do in a village setting, and they can change your true cost of ownership.

How high are property taxes in Armonk?

Armonk's combined property tax rate is about 2.0% of market value, or about $33,000 a year on the $1.67M median. That is an estimate that excludes special districts (such as fire, water and sewer) and does not subtract STAR.

The rate combines Westchester County, the Town of North Castle and the Byram Hills Central School District, using full-value rates for the fiscal year ending 2025 from New York State's property tax rate dataset on data.ny.gov. The school district is the largest piece.

One important detail: parts of North Castle fall in other school districts (Valhalla, Mount Pleasant, Harrison or Bedford) with different rates. Confirm the school district and pull the actual tax bill for any address before you compare it with another town. Our Westchester property tax guide for NYC buyers explains how to read a bill.

What are the schools like in Armonk?

Armonk is served by the Byram Hills Central School District, which runs 4 schools and holds an A+ grade on Niche, ranked #38 of 597 best school districts in New York (Niche district profile).

All of the district's schools are located in Armonk, and Niche reports about 2,350 students in grades K–12, which makes Byram Hills a fairly small district. Niche lists Coman Hill and Wampus among its elementary schools.

Because some North Castle addresses sit in other districts, check the district for each home on the Byram Hills Central School District website. To compare districts across the county, see our guide to Westchester school districts for NYC families.

How long is the commute from Armonk to Manhattan?

Armonk has no Metro-North station. Commuters typically drive to North White Plains or White Plains on the Harlem Line, where the train to Grand Central takes about 40–55 minutes, plus the drive to the station.

That range is approximate, from MTA weekday timetables, and covers express and local trains. North White Plains is 24 miles from Grand Central and White Plains is 22 miles. A monthly ticket from either station costs $271.50 under the current MTA fare table. Check departures on the MTA Harlem Line schedule.

The drive is the variable. Time it on a weekday morning, find out how parking works at the station you would use, and add both to the train time. Compare Armonk's door-to-door time with other towns in our Westchester commuter towns ranked.

Who is Armonk a good fit for?

Armonk fits buyers who want land, privacy and a strong, small school district, and who are comfortable driving to the train. It is a weaker fit for anyone who wants to walk to a station or to daily errands.

Reasons buyers choose Armonk:

• An A+ school district ranked #38 in New York by Niche, with all schools in Armonk.
• A lower estimated tax rate (about 2.0%) than several nearby options, including Chappaqua (about 2.4%).
• More space per dollar, with a median of $469 per square foot.
• Major employers in town, which can help a household with one local commuter.

Trade-offs to weigh:

• No train station; every Manhattan trip starts with a drive.
• A small market, so medians swing and choice at any moment can be limited.
• School district and tax rate can vary by address within North Castle.

Which towns near Armonk should you also look at?

Chappaqua is the natural comparison: similar prices and an A+ district, plus its own Harlem Line station, but a higher estimated tax rate and a longer ride of about 55–65 minutes. Read our guide to living in Chappaqua or the Chappaqua vs Armonk comparison.

• Harrison: includes the hamlet of Purchase, has a New Haven Line station about 40–50 minutes from Grand Central and an A+ district ranked #20 in New York by Niche. See living in Harrison NY.
• White Plains: home to the stations most Armonk commuters use, with a Redfin median of about $750,000 and Harlem Line trains of about 35–55 minutes to Grand Central. See living in White Plains NY.

For a full side-by-side of all 16 towns on price, taxes, schools and commute, see our Westchester towns compared for 2027 hub.

Frequently Asked Questions

Does Armonk have a train station?

No. Armonk residents typically drive to North White Plains or White Plains on Metro-North's Harlem Line, where the ride to Grand Central is about 40–55 minutes plus the drive.

What is the median home price in Armonk NY?

The Redfin median sale price, all home types, was about $1.67M for the 3 months ending August 2026, down 5.2% year over year on a small number of sales. Median price per square foot was $469.

How much are property taxes in Armonk?

About 2.0% of market value, or about $33,000 a year on the median price. The estimate excludes special districts and STAR, and it assumes the Byram Hills school district.

What school district serves Armonk?

Armonk is served by the Byram Hills Central School District, which runs 4 schools and is graded A+ by Niche, ranked #38 of 597 districts in New York. Some North Castle addresses fall in other districts, so confirm for each home.

Is Armonk part of North Castle?

Yes. Armonk is a hamlet in the Town of North Castle and is the seat of the town government and main library. The town had 12,408 residents at the 2020 Census.

Sources and Methodology

• Redfin – Armonk housing market
• Zillow – Armonk home values
• NYS Real Property Tax Rates Levy Data (data.ny.gov)
• Byram Hills Central School District
• Niche – Byram Hills Central School District
• MTA Metro-North Harlem Line schedule
• MTA Metro-North fare table
• Wikipedia – Armonk, New York

Updated November 2026. Figures are the latest published at the time of writing and change month to month; confirm current numbers before making an offer. Tax estimates are illustrative, not a tax bill.