| ZIP Codes: | 72 ZIP Codes (44 Standard, 25 PO Box, 3 Unique) [See All] |
| Area Codes: | 223 / 717 |
| Timezone: | Eastern (GMT -05:00) |
| Local Time: | 2:13:31 PM |
| Population: | 558,164 [See All] |
| FIPS: | 42071 |
| CBSA: | Lancaster, PA |
| Land Area: | 966 sq mi |
| Water Area: | 40 sq mi |
| Coordinates: | 40.0602, -76.2534 |
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558,164 residents live across 72 ZIPs covering 966 sq mi, served by 61 distinct USPS-recognized cities.
Population moved from 526,503 to 557,590 from 2014 to 2024 — a +5.9% change. 34 ZIPs gained residents, 15 lost.
The county's wealthiest ZIP 17565 (Pequea, $125,313 median) and poorest ZIP 17560 (New Providence, $62,169) are 4.5 miles apart — a 2.0× income gap across local geography.
Median home values vary 1.9× across this county — from $216,900 in 17560 (New Providence) to $409,700 in 17535 (Kinzers).
Density varies 36× across the county — from 81 people/sq mi in 17518 (Drumore) to 2,950 in 17508 (Brownstown).
Educational attainment ranges from 10.1% bachelor's+ in 17563 (Peach Bottom) to 50.0% in 17601 (Lancaster) — the breadth of educational profiles across the area.
Within Pennsylvania, this is the #6 most populous of 67 counties and ranks #8 for median household income with the #9 fastest decade growth .
Hosts 3 single-entity Unique ZIPs: 17573Jay Advertising ; 17622Qvc Network Inc ; and 17699Qvc Network Inc .
Weighted by population, the typical household earns about $87,308 across the county — reflecting what a typical resident sees, not a simple ZIP average.
32.5% of adults age 25+ hold a bachelor's degree or higher (123,765 of 380,719 reporting).
44 Standard delivery, 25 PO Box only, 3 single-entity Unique ZIPs serve this county.
| ZIP | City | Type | Population | Median Income | Area (sq mi) | 10-yr Growth |
|---|---|---|---|---|---|---|
| 17603 | Lancaster | Standard | 67,571 | $77,084 | 30.4 | 8.9% |
| 17601 | Lancaster | Standard | 56,382 | $102,435 | 33.6 | 13.0% |
| 17602 | Lancaster | Standard | 52,217 | $75,862 | 25.1 | -3.0% |
| 17543 | Lititz | Standard | 45,912 | $97,435 | 64.8 | 7.5% |
| 17522 | Ephrata | Standard | 33,852 | $74,828 | 43.4 | 3.2% |
| 17022 | Elizabethtown | Standard | 31,908 | $86,767 | 55.4 | 8.7% |
| 17545 | Manheim | Standard | 23,556 | $84,704 | 69.9 | 7.4% |
| 17552 | Mount Joy | Standard | 19,761 | $97,683 | 32.4 | -1.1% |
| 17512 | Columbia | Standard | 18,148 | $66,684 | 17.4 | 1.5% |
| 17557 | New Holland | Standard | 15,055 | $82,491 | 32.2 | 4.5% |
| 17517 | Denver | Standard | 14,686 | $99,202 | 35.3 | -7.6% |
| 17566 | Quarryville | Standard | 12,603 | $78,108 | 59.5 | 3.0% |
| 17551 | Millersville | Standard | 11,753 | $68,661 | 11.1 | 5.8% |
| 17584 | Willow Street | Standard | 11,646 | $108,723 | 14.7 | 30.7% |
| 17540 | Leola | Standard | 10,728 | $91,895 | 20.7 | 14.8% |
| 17547 | Marietta | Standard | 9,210 | $92,199 | 14.3 | 40.6% |
| 17578 | Stevens | Standard | 7,504 | $81,990 | 17.3 | -2.5% |
| 17554 | Mountville | Standard | 7,453 | $98,431 | 3.0 | 2.4% |
| 17569 | Reinholds | Standard | 7,323 | $96,313 | 16.3 | 31.9% |
| 17538 | Landisville | Standard | 7,314 | $86,719 | 4.1 | 8.1% |
| 17555 | Narvon | Standard | 7,251 | $116,429 | 33.5 | -8.3% |
| 17519 | East Earl | Standard | 7,127 | $96,250 | 22.2 | 1.4% |
| 17579 | Strasburg | Standard | 6,875 | $91,621 | 15.0 | 9.9% |
| 17527 | Gap | Standard | 6,094 | $94,788 | 20.8 | -2.4% |
| 17560 | New Providence | Standard | 5,460 | $62,169 | 15.3 | 2.7% |
| 17516 | Conestoga | Standard | 5,180 | $103,942 | 25.7 | 14.8% |
| 17509 | Christiana | Standard | 5,135 | $77,238 | 27.5 | 9.3% |
| 17520 | East Petersburg | Standard | 5,040 | $93,235 | 1.8 | 8.2% |
| 17529 | Gordonville | Standard | 4,826 | $80,050 | 15.5 | 5.1% |
| 17501 | Akron | Standard | 4,614 | $78,182 | 1.6 | 2.3% |
| 17562 | Paradise | Standard | 4,373 | $108,462 | 17.7 | -3.0% |
| 17563 | Peach Bottom | Standard | 3,952 | $94,167 | 32.4 | 2.5% |
| 17572 | Ronks | Standard | 3,643 | $80,804 | 15.6 | 5.0% |
| 17536 | Kirkwood | Standard | 3,452 | $76,042 | 21.6 | 23.9% |
| 17532 | Holtwood | Standard | 3,328 | $84,562 | 24.3 | 2.1% |
| 17535 | Kinzers | Standard | 3,042 | $108,774 | 11.9 | 59.0% |
| 17565 | Pequea | Standard | 2,523 | $125,313 | 14.4 | 5.7% |
| 17502 | Bainbridge | Standard | 2,485 | $72,776 | 10.3 | -11.0% |
| 17505 | Bird In Hand | Standard | 2,358 | $96,583 | 7.9 | 10.1% |
| 17582 | Washington Boro | Standard | 1,702 | $100,263 | 11.4 | -19.2% |
| 17518 | Drumore | Standard | 1,360 | $64,875 | 16.8 | -3.6% |
| 17508 | Brownstown | PO Box | 1,125 | $104,597 | 0.4 | 258.3% |
| 19501 | Adamstown | PO Box | 823 | $110,179 | 0.7 | -9.8% |
| 17506 | Blue Ball | PO Box | 469 | — | 0.0 | — |
| 17606 | Lancaster | PO Box | 404 | — | 0.0 | -25.0% |
| 17550 | Maytown | PO Box | 313 | — | 0.2 | -69.4% |
| 17581 | Terre Hill | Standard | 180 | — | 0.3 | -80.5% |
| 17570 | Rheems | PO Box | 176 | $90,833 | 0.0 | -13.7% |
| 17504 | Bausman | PO Box | 105 | $88,542 | 0.0 | — |
| 17576 | Smoketown | Standard | 103 | — | 0.1 | 221.9% |
| 17507 | Bowmansville | PO Box | 64 | — | 0.0 | 18.5% |
| 17534 | Intercourse | PO Box | 0 | — | 0.1 | — |
| 17568 | Refton | PO Box | 0 | — | 0.0 | — |
| 17580 | Talmage | PO Box | — | — | 0.0 | — |
| 17537 | Lampeter | PO Box | — | — | 0.0 | — |
| 17503 | Bart | PO Box | — | — | 0.0 | — |
| 17608 | Lancaster | PO Box | — | — | 0.0 | — |
| 17607 | Lancaster | PO Box | — | — | 0.0 | — |
| 17605 | Lancaster | PO Box | — | — | 0.0 | — |
| 17573 | Lancaster | Unique | — | — | 0.0 | — |
| 17622 | Lancaster | Unique | — | — | 0.0 | — |
| 17611 | Lancaster | Standard | — | — | 0.0 | — |
| 17604 | Lancaster | PO Box | — | — | 0.0 | — |
| 17575 | Silver Spring | PO Box | — | — | 0.0 | — |
| 17699 | Lancaster | Unique | — | — | 0.0 | — |
| 17521 | Elm | PO Box | — | — | 0.0 | — |
| 17564 | Penryn | PO Box | — | — | 0.0 | — |
| 17567 | Reamstown | PO Box | — | — | 0.2 | — |
| 17533 | Hopeland | PO Box | — | — | 0.0 | — |
| 17549 | Martindale | PO Box | — | — | 0.0 | — |
| 17585 | Witmer | PO Box | — | — | 0.0 | — |
| 17528 | Goodville | PO Box | — | — | 0.0 | — |