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CL

Clay, Lancaster County, Pennsylvania

Census designated place in Lancaster County, Pennsylvania · ZIP 17522, 17543

  • Lancaster County
  • Within Clay Township
  • Census data · ACS 2019-2023
  • 1 public schools
  • 1,576 (2019-2023 estimate)Population
  • 719Households
  • $82,094Median household income
  • $265,300Median home value
  • 1Public schools
  • 2ZIP codes

About Clay

This page shows only what has been published about Clay: Census facts with their sources first, then its businesses, jobs, events, people in public roles, housing and questions as they are added. Nothing here is written by the town government.

Town intelligenceOfficial sources, refreshed yearly

Population, 2010 to 2020+19.9%
1.4k1.6k1.8k2k2010: 1,55920102020: 1,86920201,5591,869
Population of Clay at each census
CensusPopulation
20101,559
20201,869

As counted at each census, within the boundaries the area had then; the current estimate is in the glance card.

Sources: Census 2010 Summary File 1: total population, place level, state 42, retrieved November 14, 2026; Census 2020 Redistricting Data (P.L. 94-171): total population, place level, state 42, retrieved November 14, 2026.

Household income in Clay
Under $50k40.8%
$50k to $100k17.2%
$100k to $150k25.2%
$150k to $200k14.2%
$200k and over2.6%

Median household income $82,094 · Share of households by income, American Community Survey 5-year 2019-2023, table S1901.

Source: American Community Survey 5-year subject table S1901 (household income) 2019–2023, place level, state 42, retrieved November 14, 2026.

Housing tenure in Clay
Owner occupied
472 units
Renter occupied
247 units
Vacancy rate
8.2%

Occupied housing units by tenure and the share of all units vacant, American Community Survey 5-year 2019-2023, table DP04.

Source: American Community Survey 5-year data profile 2019–2023, place level, state 42, retrieved November 14, 2026.

Clay compared with its county and state
Clay compared with its county and state, American Community Survey 2019-2023
MeasureClayLancaster CountyPennsylvania
Population1,576555,15112,986,518
Median household income$82,094$83,703$76,081
Median age54.139.140.9
Median home value$265,300$279,400$240,500
Bachelor’s degree or higher19.1%31.0%34.5%
Foreign-born residents0.0%5.6%7.4%
Owner-occupied homes65.6%69.9%69.3%
Mean commute to work28.7 minutes24.0 minutes26.6 minutes

Source: American Community Survey 5-year data profile 2019–2023, place level, state 42, retrieved November 14, 2026.

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Schools

Public schools in Clay1
Public schools in Clay, NCES directory 2023–2024
SchoolTypeGradesDistrict
Clay El SchPublicK–4Ephrata Area SD

Open public schools in the NCES directory for 2023–2024, placed by their listed location; private schools are not in the source. Enrollment and ratings are not shown.

Sources: NCES Common Core of Data, public school directory 2023–2024, retrieved November 14, 2026; NCES EDGE public school geocodes 2024–2025, retrieved November 14, 2026.

Legislative districts

Legislative districts for Clay4
Congressional and state legislative districts for Clay
ChamberDistrictShare of Clay
U.S. House of RepresentativesCongressional District 11 (PA-11)All
State legislature, lower chamberState House District 37All
State legislature, upper chamberState Senate District 363%
State legislature, upper chamberState Senate District 4897%

Boundaries from the Census Bureau’s TIGER/Line district files, matched to Clay’s own boundary; a town split between districts lists each with the share of its land inside it. Who holds each seat appears on the People page once the official records are approved.

Sources: Census cartographic boundaries 2025: congressional districts, 119th Congress, retrieved November 14, 2026; Census cartographic boundaries 2025: state legislative districts, upper chamber, state 42, retrieved November 14, 2026; Census cartographic boundaries 2025: state legislative districts, lower chamber, state 42, retrieved November 14, 2026.

Frequently asked about ClayPromoted from questions people asked

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Nearby towns

Other towns in Lancaster County

All towns in Lancaster County

Other places named Clay in Pennsylvania