NEIGHBORSCORE

Marriottsville, Maryland · ZIP 21104

Marriottsville — ZIP 21104

Crime DataSchools

Marriottsville (21104) scores 81/100 — Good for Marriottsville. Safety: Lower reported-crime rate under the available data tier. Schools: Higher reported proficiency and grade-band coverage. A premium market - pricier than most of the state. The typical home value here is $733K.

81OUT OF 100

Overall NeighborScore

B+Good

Tap a tab to compare 21104 against its city, state, or the nation.

Lower reported-crime rate under the available data tier.

Safety index80/100
Violent crime share14%
Property crime share86%

Higher reported proficiency and grade-band coverage.

School index82/100
Avg math proficiency67%
Avg reading proficiency79%
Schools nearby2

A premium market - pricier than most of the state.

Affordability index36/100
Typical home value$733K

How this score is calculated: the NeighborScore composite weights crime 53% and schools 47%, each normalized to the local area. Home affordability is shown for context and is not factored into the overall score. Sources & methodology →

Last refreshed — Schools: Aug 2026 · Real estate: Aug 2026 · Demographics: Jun 2026

Nearby Neighborhoods

Not the right fit? See how adjacent ZIPs score — tap to jump over.

Marriottsville, MarylandMarriottsvilleZIP 21163
51▼30 vs here
West Friendship, MarylandWest FriendshipZIP 21794
52▼29 vs here
Cooksville, MarylandCooksvilleZIP 21723
61▼20 vs here
Ellicott City, MarylandEllicott CityZIP 21042
61▼20 vs here

More ZIPs in Marriottsville

Marriottsville, MarylandMarriottsvilleZIP 21163
51▼30 vs here

Real Estate Snapshot

Typical Home Value

$733K

Median Rent

—

Days on Market

—

Sale-to-List

—

Typical Home Value — 23 Months

Crime Overview

Total Incidents

1,425

Violent Crime

200

Property Crime

1,225

Crime statistics for this area are estimated from FBI-reported county-level data for Carroll County, Maryland (2025). This ZIP does not yet have city-specific monthly crime data, so figures reflect the entire county rather than this ZIP alone.

Full Crime Report →

Nearby Schools

Grades
Marriotts Ridge High09–121,741
72%
80%
Mount View Middle06–08881
61%
77%

Directory and latest enrollment: NCES Common Core of Data (SY 2024–25 where reported). Proficiency: U.S. Department of Education EDFacts SY 2021–22; state standards are not directly comparable.

Full School Report →

Demographics

Population

5,786

Median Income

$192K

Homeownership

97%

Median Age

43.1 yrs

Source: US Census Bureau ACS 5-Year Estimates (2024).

Map

Frequently Asked Questions

ZIP 21104 has a reported-crime score of 80/100. A higher score represents a lower reported-crime rate under the best available data tier for this ZIP; it is not a guarantee of safety. Review the crime report and current local police data before making a decision.
ZIP 21104 has a school score of 82/100. The index combines reported SY 2021–22 math and reading proficiency with grade-band coverage. Nearby or county-level estimates may be used where ZIP-level reporting is sparse, and state assessment standards are not directly comparable.
The latest home value or sale-price figure available for ZIP 21104 is approximately $733K. The profile identifies the underlying source; Zillow ZHVI is a typical home value measure, while Redfin data is a median sale-price measure. These are different metrics and may lag current listings.
ZIP 21104 in Marriottsville has an overall NeighborScore of 81/100. It combines the crime score (53%) and school score (47%); affordability is context only. Use the component data and its coverage notes rather than treating the composite as a complete measure of livability.