17821 ZIP Code Profile, Map, Data & Demographics

Preferred Name, USPS

Danville, PA 17821

Not Acceptable, USPS

Danville East, PA 17821

Deiblers, PA 17821

Exchange, PA 17821

Grovania, PA 17821

Kaseville, PA 17821

Mahoning, PA 17821

Mausdale, PA 17821

Mooresburg, PA 17821

Ottawa, PA 17821

Ridgeville, PA 17821

Rushtown, PA 17821

Strawberry Rg, PA 17821

Valley, PA 17821

West Hemlock, PA 17821

ZIP Code Type: STANDARD
County: Montour County
Centroid: Latitude 40.974, Longitude -76.613
Time Zone: Eastern Time Zone (UTC -5 hours)
Observes DST: Yes

ZIP Code 17821 has segments in 4 Counties (Columbia, Montour, Northumberland, Union).

Businesses Addresses: 529
PO Box Addresses: 78
Residential Addresses: 8,556

Multi-Family Addresses: 445
Single Family Addresses: 8,111

The ZIP Code maps and database are updated 4 times per year.
Database updated: October 1, 2025, Maps updated: May 1, 2024.

Danville, PA 17821 Data & Demographics (As of July 1, 2025)

POPULATION
Total Population	19,465 (100%)
Population in Households	18,814 (96.7%)
Population in Families	14,736 (75.7%)
Population in Group Quarters¹	651 ( 3.3%)
Population Density	145
Diversity Index²	26


INCOME
Median Household Income	$77,958
Average Household Income	$110,037
% of Income for Mortgage⁴	24%
Per Capita Income	$46,111
Wealth Index⁵	99
Socioeconomic Status Index⁶	Moderate (56.9)

HOUSING
Total HU (Housing Units)	8,779 (100%)
Owner Occupied HU	5,963 (67.9%)
Renter Occupied HU	2,186 (24.9%)
Vacant Housing Units	630 ( 7.2%)
Median Home Value	$300,351
Average Home Value	$363,222
Housing Affordability Index³	95

HOUSEHOLDS
Total Households	8,149
Average Household Size	2.31
Family Households	5,084
Average Family Size	3.00

NOTES

Group Quarters - a place where people live or stay in a group living arrangement. Includes college residents halls, nursing facilities, military barracks, and correctional facilities.
The Diversity Index is a scale of 0 to 100 that represents the likelihood that two persons, chosen at random from the same area, belong to different races or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.
The Housing Affordability Index base is 100 and represents a balance point where a resident with a median household income can normally qualify to purchase a median price home. Values above 100 indicate increased affordability, while values below 100 indicate decreased affordability.
The % of Income for Mortgage quantifies the percentage of median household income dedicated to mortgage payments on a home priced at the median value (assuming a 30-year mortgage and a 20% down payment).
The Wealth Index is based on a number of indicators of affluence including average household income and average net worth, but it also includes the value of material possessions and resources. It represents the wealth of the area relative to the national level. Values above or below 100 represent above-average wealth or below-average wealth compared to the national level.
The Socioeconomic Index ranges from zero (lowest relative status) to 100 (highest relative status). This measure quantifies disparities in social position of an area's inhabitants and is built from a broad range of demographic, housing, and socioeconomic inputs. More information on this measure can be found in Esri's SEI tutorial.

Danville, PA 17821 - Peer Comparisons by Rank and Percentile

The table below compares 17821 to the other 1,696 ZIP Codes in Pennsylvania by rank and percentile using July 1, 2025 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.

GROWTH RATE / YEAR	2020-2025	2025-2030
Population	-0.06%	-0.18%
Households	0.12%	0.02%
Families		-0.12%
Median Household Income		2.41%
Per Capita Income		2.73%
Owner Occupied HU		0.10%

Variable Description	Rank	Percentile
Total Population	# 211	88th
Population Density	# 1022	40th
Median Household Income	# 611	64th
Housing Affordability Index	# 707	42nd
Per Capita Income	# 373	78th
Diversity Index	# 609	64th

17821 ZIP Code Profile, Map, Data & Demographics

ZIP Code 17821: Basic Data & USPS Preferred City Name

Danville, PA 17821 Data & Demographics (As of July 1, 2025)

POPULATION

INCOME

HOUSING

HOUSEHOLDS

GROWTH RATE / YEAR

Danville, PA 17821 - Peer Comparisons by Rank and Percentile

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