States · Pennsylvania · Westmoreland County

Derry, Pennsylvania.

. Pittsburgh, PA metro.

What it costs per month · Derry $1,507/mo

to buy the typical home at today's mortgage rate — +$793 (+111%) since Jan 2020.

Monthly payment to buy the typical home

Home value × that month's 30-year mortgage rate, 20% down, principal and interest. This is the line households feel: prices and rates compound each other.

$500 $1,000 $1,500 $2,000 2002 2006 2010 2014 2018 2022 2026 Pennsylvania $1,507 United States $1,922
$500 $1,000 $1,500 $2,000 2002 2010 2018 2026
  • Pennsylvania$1,507
  • United States$1,922

Living in Derry, Westmoreland County, Pennsylvania

Derry is a borough of 2,639 people in Westmoreland County. Half its households earn more than $50,313 a year and half less, against $74,109 across Westmoreland County; 17% of its people live below the poverty line. 70% of its homes are lived in by their owners and 30% are rented. Unemployment in Westmoreland County was 3.9% in August 2026, and the county had 0.3% fewer jobs in 2025 than the year before. The most residents work in manufacturing, then schools and health care.

People 2,639 in the 2020 census; median age 41.6
Household income $50,313 the median, give or take $6,388 · Westmoreland County: $74,109
Unemployment 3.9% Westmoreland County, August 2026; 5.0% a year before
Homes 70% lived in by their owners; 30% rented

Written by AI Claude Sonnet 5.5 wrote this on 23 October 2026 from the figures here, a list of nearby places and what it knows. It can be wrong or out of date.

What it’s like

The place. Derry is a small borough in Westmoreland County, with a population on the smaller side and a median age a little older than many places. Incomes here run well below the county's, more people live below the poverty line than one might expect, and most homes are lived in by their owners. Winters are cold and the summers pleasantly warm, with a good deal of rain and melted snow through the year.

Work. Residents work mostly in manufacturing, in schools, hospitals and social care, and in shops. Across Westmoreland County, some of the largest workplaces are Westmoreland Regional Hospital, UPS and Elliott Group, a maker of compressors. Unemployment across the county has eased over the past year, though the number of jobs there has slipped slightly from the year before. Fewer adults hold a four-year degree than in many places, and commutes are of a typical length, with some people working from home.

Things to do. A short drive away, Idlewild and Soak Zone is an amusement park, and Keystone State Park offers a protected area of woods and water to walk through. For a longer outing, the Westmoreland Museum of American Art is a museum, and the Flight 93 National Memorial is a protected area that draws visitors from well beyond the region. The Conemaugh River, also a longer drive away, suits those who like to spend time by the water.

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  • 1,192households
  • 20%of adults have a degree
  • 17%below the poverty line
  • 23 mintypical commute
  • 11%work from home

What residents work in

  • Manufacturing19%
  • Schools, hospitals and social care18%
  • Shops (retail)12%
  • Other services9%
  • Restaurants, hotels and entertainment8%
  • Building trades8%

Employed residents by industry, from the Census survey. Westmoreland County had 128,972 jobs in 2025, 0.3% fewer than the year before (Bureau of Labor Statistics).

Weather through the year

Average daily high and low for each month: coldest in January, 36° and 19°; warmest in July, 80° and 61° 20° 40° 60° 80° J 36° 19° F M A M J J 80° 61° A S O N D
Average daily high and low for each month: coldest in January, 36° and 19°; warmest in July, 80° and 61° 20° 40° 60° 80° J 36° 19° F M A M J J 80° 61° A S O N D

Coldest in January, with highs near 36° and lows near 19°; warmest in July, with highs near 80° and lows near 61°. About 50 inches of rain and melted snow a year.

Average daily high and low, 1991–2020, at the Laurel Mountain weather station, 11 miles away (NOAA).

Largest workplaces in Westmoreland County

  1. Penn Line Tree ServiceTree and brush trimming, overhead utility line1,772
  2. UPSCouriers and express delivery services1,549
  3. Cleveland Brothers Equipment CompanyAgricultural machinery and equipment repair and maintenance services1,433
  4. Westmoreland Regional HospitalGeneral hospital1,308FTE
  5. Elliott GroupCompressors, air and gas, general purpose-type, manufacturing1,033
  6. AmazonGeneral warehousing and storage941
  7. LeedsworldLabels, textile, merchant wholesalers770
  8. Latrobe Area HospitalGeneral hospital702FTE

Staff on average in 2025, as each workplace reported it to OSHA with its injury records: 323 workplaces with 20 or more staff, 46,068 people in all across the county; Derry has two of its own. Hospitals come from their Medicare cost reports (CMS, 2023); FTE marks full-time equivalent staff. Not listed: many offices and banks, which need not report to OSHA; military bases, whose staff OPM withholds; and, in about half the states, city and county governments.

Natural hazards

  1. LightningRelatively moderate

FEMA’s National Risk Index (December 2025) rates the risk each natural hazard poses to the people, buildings and farms in Derry’s census tracts, against the rest of the country; all of them together, very low. It is meant for planning, not a substitute for a local risk assessment or a flood map: FEMA’s index.

From the U.S. Census Bureau’s 2020 census and its American Community Survey (2020–2024 five-year estimates), and the Bureau of Labor Statistics. A survey, so each figure has a margin of error, and figures it is not sure of are left out. More on Westmoreland County and the Pittsburgh, PA metro.

Derry home values

Zillow measures a city over its municipal boundary. Against the state and national figures, mid-tier homes, smoothed and seasonally adjusted.

Not enough data to draw this yet.

Market heat, inside the city limits

Homes for sale

Active for-sale inventory. More supply hands power to buyers.

10 15 20 2020 2021 2022 2023 2024 2025 2026 Derry 11
10 15 20 2020 2022 2024 2026
  • Derry11

New listings per month

Sellers arriving at the market.

Not enough data to draw this yet.

Zip codes with a Derry address

A different geography, not a breakdown. The figure above covers the municipality; these zips cover everywhere the Post Office calls Derry — often including townships beyond the city limits. Both come straight from Zillow, and they are not expected to average out.

Zip codes in Derry