21758 ZIP Code Demographics & Rankings

ZIP Code Type: STANDARD
County: Frederick County
Centroid: Latitude 39.341, Longitude -77.654
Time Zone: Eastern Time Zone (UTC -5 hours)
Observes DST: Yes

ZIP Code 21758 has segments in 2 Counties / Independent Cities (Frederick, Washington).

Businesses Addresses: 30
PO Box Addresses: 6
Residential Addresses: 1,776

Multi-Family Addresses: 0
Single Family Addresses: 1,776

The ZIP Code maps and database are updated 4 times per year.
Database updated: August 1, 2019, Maps updated: August 2, 2019.

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Knoxville, MD 21758 Data & Demographics (As of July 1, 2019)

HOUSING AFFORDABILITY INDEX
Knoxville, MD 21758 Housing Affordability Index is 157 State of Maryland Housing Affordability Index is 118
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.

WEALTH INDEX
Knoxville, MD 21758 Wealth Index is 149 State of Maryland Wealth Index is 141
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.

These new demographic attributes are availiable for cities, Counties / Independent Cities, ZIP Codes and even neighborhoods (Census Blocks) when you search by a specific Maryland address.

POPULATION
Total Population	5,013
Population in Households	5,002
Population in Familes	4,345
Population in Group Qrtrs	11
Population Density	151
Diversity Index¹	32

INCOME
Median Household Income	$97,825
Average Household Income	$114,630
Per Capita Income	$40,728
Wealth Index³	149

HOUSING
Total Housing Units	1,903 (100%)
Owner Occupied HU	1,522 (80.0%)
Renter Occupied HU	259 (13.6%)
Vacant Housing Units	122 ( 6.4%)
Median Home Value	$323,888
Housing Affordability Index²	157

HOUSEHOLDS
Total Households	1,781
Average Household Size	2.81
Family Households	1,354
Average Family Size	3

NOTES

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 race 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 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.

Knoxville, MD 21758 - Peer Comparisons by Rank and Percentile

The table below compares 21758 to the other 461 ZIP Codes in Maryland by rank and percentile using July 1, 2019 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	2010-2019	2019-2024
Population	0.31%	1.02%
Households	0.33%	1.14%
Families	0.29%	1.04%
Median Household Income		1.94%
Per Capita Income		2.43%

Variable Description	Rank	Percentile
Total Population	# 239	48th
Population Density	# 323	30th
Diversity Index	# 291	37th
Median Household Income	# 163	65th
Per Capita Income	# 215	54th

Knoxville, MD 21758 ZIP Code Profile

ZIP Code 21758: Basic Data & USPS Preferred City Name

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Knoxville, MD 21758 Data & Demographics (As of July 1, 2019)

HOUSING AFFORDABILITY INDEX

WEALTH INDEX

POPULATION

INCOME

HOUSING

HOUSEHOLDS

GROWTH RATE / YEAR

Knoxville, MD 21758 - Peer Comparisons by Rank and Percentile

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Frederick County

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