21104 ZIP Code Demographics & Rankings

ZIP Code Type: STANDARD
County: Carroll County
Centroid: Latitude 39.344, Longitude -76.907
Time Zone: Eastern Time Zone (UTC -5 hours)
Observes DST: Yes

ZIP Code 21104 has segments in 3 Counties / Independent Cities (Baltimore, Carroll, Howard).

Businesses Addresses: 111
PO Box Addresses: 0
Residential Addresses: 2,087

Multi-Family Addresses: 108
Single Family Addresses: 1,979

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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Marriottsville, MD 21104 Data & Demographics (As of July 1, 2019)

HOUSING AFFORDABILITY INDEX
Marriottsville, MD 21104 Housing Affordability Index is 122 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
Marriottsville, MD 21104 Wealth Index is 243 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	6,678
Population in Households	6,619
Population in Familes	6,029
Population in Group Qrtrs	59
Population Density	351
Diversity Index¹	41

INCOME
Median Household Income	$116,796
Average Household Income	$151,168
Per Capita Income	$51,035
Wealth Index³	243

HOUSING
Total Housing Units	2,316 (100%)
Owner Occupied HU	2,094 (90.4%)
Renter Occupied HU	160 ( 6.9%)
Vacant Housing Units	62 ( 2.7%)
Median Home Value	$507,606
Housing Affordability Index²	122

HOUSEHOLDS
Total Households	2,254
Average Household Size	2.94
Family Households	1,824
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.

Marriottsville, MD 21104 - Peer Comparisons by Rank and Percentile

The table below compares 21104 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	2.33%	1.87%
Households	2.24%	1.83%
Families	2.17%	1.75%
Median Household Income		0.59%
Per Capita Income		1.31%

Variable Description	Rank	Percentile
Total Population	# 212	54th
Population Density	# 242	48th
Diversity Index	# 216	53rd
Median Household Income	# 68	85th
Per Capita Income	# 102	78th

Marriottsville, MD 21104 ZIP Code Profile

ZIP Code 21104: Basic Data & USPS Preferred City Name

Popular Places Near ZIP Code 21104

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Marriottsville, MD 21104 Data & Demographics (As of July 1, 2019)

HOUSING AFFORDABILITY INDEX

WEALTH INDEX

POPULATION

INCOME

HOUSING

HOUSEHOLDS

GROWTH RATE / YEAR

Marriottsville, MD 21104 - Peer Comparisons by Rank and Percentile

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Carroll County

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