Elk Mills, MD · standard
ZIP Code 21920
Cecil County, Maryland - Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.
- 257
- 199/sq mi High-density area
- $124,146
- Median income Above-median income area
- $356,000
- Median home value Above-median home value
- 22.4%
- Bachelor's or higher Near-average bachelor's attainment
National ZIP placement
Elk Mills pairs a top-decile household income with above-median home values, in a rural, homeowner-dominated area.
- Top 8%
- household income, US ZIPs
- Top 26%
- home value, US ZIPs
- 199
- people per sq mi
- 65%
- owner-occupied homes
Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 21920 against every reporting US ZIP.
ZIP code 21920 is a sparsely populated ZIP (a standard USPS delivery area) in Elk Mills, Cecil County, Maryland, home to just 257 residents across 1.3 square miles, a density of 199 people per square mile, in the New York time zone.
ZIP 21920 skews affluent, with a median household income of $124,146 (9% above the average Maryland ZIP), while per-capita income is $34,843. The poverty rate is 10.0%, with unemployment at 0.0%; those measures add context to the income figure. Home values sit below the statewide ZIP benchmark: the median is $356,000 (20% below the average Maryland ZIP), and median rent is $1,346; owner occupancy is 65.4%.
Educational attainment sits below the national norm: 22.4% of adults hold a bachelor's degree or higher, the median age is 36.7, and the average commute is -. The page also surfaces 10 ZIP codes within roughly 10 miles and 6 more in Cecil County, so 21920 can be compared with both its immediate and county-level context.
Every figure on this page is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates (including median rent) and the FHFA House Price Index, no estimates, no proprietary scoring. Verify with Census →
Source: U.S. Census Bureau, American Community Survey 5-Year Estimates + ZIP Code Business Patterns + FHFA HPI ACS demographics and median rent, ZBP business establishments, FHFA HPI for ZIP 21920, Elk Mills, MD · 2023 Census ACS 5-Year Estimates use a rolling 60-month sample for stable small-geography estimates; ZBP updated annually; FHFA HPI updated quarterly/annually.
Quick Facts
257
Population
1.3
Area (sq mi)
199
People / sq mi
New York
Time Zone
standard
ZIP Type
Who lives in ZIP 21920?
36.7
Median Age
46.7%
Male
53.3%
Female
6.9%
Foreign-Born
Hispanic or Latino is an ethnicity category from the Census Bureau and may overlap with other categories above.
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
How much do residents earn?
$124,146
Median Household Income
+9% vs state ZIP avg
$34,843
Per Capita Income
10.0%
Poverty Rate
0.0%
Unemployment Rate
How ZIP 21920 ranks among Maryland ZIPs
Elk Mills, MD household income vs. every Maryland ZIP code
Median household income among 419 reporting Maryland ZIPs (this ZIP's population is too small for a reliable national-corpus placement)
$124,146 Top 35% higher than 65% of 419 Maryland ZIPs
Each bar is a $20K-wide band; taller bars hold more Maryland ZIPs. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
Source U.S. Census Bureau, ACS 5-Year Estimates · 2019–2023
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What is the education profile here?
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What does housing look like?
Housing stock: occupied vs vacant
436housing units
436
Total Housing Units
436
Occupied Units
0
Vacant Units
3.24
Avg Household Size
Occupancy Type
$356,000
Median Home Value
-20% vs state ZIP avg
$1,346
Median Rent
1983
Median Year Built
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
Nearby ZIP Codes
Want a side-by-side? Compare 21920 vs 21916 →
ZIP 21920 vs its nearest neighbors, by population
Resident population of this ZIP and the closest reporting ZIP codes within ~10 miles.
- 19702
Newark (19702)
51,899 residents
- 19711
Newark (19711)
51,322 residents
- 21921
Elkton (21921)
44,471 residents
- 19713
Newark (19713)
30,408 residents
- 21901 15,875
North East (21901)
15,875 residents
- 19350 10,921
Landenberg (19350)
10,921 residents
- 19352 10,622
Lincoln University (19352)
10,622 residents
- 19717 3,770
Newark (19717)
3,770 residents
- 19716 1,568
Newark (19716)
1,568 residents
What this shows Among its immediate neighbors, ZIP 21920 ranks #0 by population - useful context the national average alone can't give.
ZIP 21920 vs its nearest neighbors, by median income
Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.
- 19352
Lincoln University (19352)
$165,365 median income
- 19350
Landenberg (19350)
$144,375 median income
- 21920
Elk Mills (21920)
$124,146 median income
- 21901
North East (21901)
$113,719 median income
- 19711
Newark (19711)
$95,403 median income
- 19702
Newark (19702)
$92,446 median income
- 21921
Elkton (21921)
$85,775 median income
- 19713
Newark (19713)
$76,493 median income
What this shows By household income, ZIP 21920 ranks #3 of 8 neighboring ZIPs, local affluence varies block to block, not just metro to metro.
| ZIP Code | City | Population | Distance |
|---|---|---|---|
| 21916 | Childs, MD | 37 | 2.1 mi |
| 21921 | Elkton, MD | 44,471 | 2.7 mi |
| 19717 | Newark, DE | 3,770 | 4.3 mi |
| 19716 | Newark, DE | 1,568 | 4.3 mi |
| 19713 | Newark, DE | 30,408 | 6.2 mi |
| 19702 | Newark, DE | 51,899 | 5.9 mi |
| 19350 | Landenberg, PA | 10,921 | 7.5 mi |
| 19711 | Newark, DE | 51,322 | 6.1 mi |
| 19352 | Lincoln University, PA | 10,622 | 8.9 mi |
| 21901 | North East, MD | 15,875 | 8.5 mi |
Nationwide ZIPs with similar ACS profiles
Two Census-derived peer sets for ZIP 21920, both outside MD so the neighborhoods are not geographic containment (Nearby and same-county blocks stay local).
Similar median household income
Nearest cross-state ZIPs by ACS median household income.
More ZIP Codes in Cecil County
Related Areas
Frequently Asked Questions
What county is ZIP code 21920 in?
ZIP code 21920 (Elk Mills) is located in Cecil County, Maryland. Cecil County contains multiple ZIP codes, see the full list at /counties/cecil-md.
What is the population of ZIP code 21920?
ZIP code 21920 in Elk Mills, MD has a population of 257 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 21920?
The median household income in ZIP 21920 is $124,146, which is 63% above the national average of $76,288.
What is the average home value in ZIP 21920?
The median home value in ZIP 21920 is $356,000, which is 28% above the national average of $278,155.
What is the demographic makeup of ZIP 21920?
The largest racial group in ZIP 21920 is White at 78.5%. Hispanic or Latino residents make up 12.7% of the population.
What is the education level in ZIP code 21920?
In ZIP code 21920, 56.9% of residents aged 25+ have a high school diploma or higher, and 22.4% hold a bachelor's degree or higher. These figures come from the Census Bureau ACS 5-Year Estimates (2023).
What percentage of residents own vs. rent in ZIP 21920?
In ZIP code 21920, approximately 65.4% of occupied housing units are owner-occupied and 34.6% are renter-occupied, based on Census ACS 2023 data.
What is the poverty rate in ZIP code 21920?
The poverty rate in ZIP code 21920 is 10.0% according to Census Bureau ACS 2023 estimates. This measures the percentage of the population living below the federal poverty threshold.
Related
Take this with you
What to do with ZIP 21920's numbers, next.
- See how ZIP 21920 compares to a neighboring ZIP code on the same Census fields Compare this ZIP
- Check where Elk Mills, MD ranks among every U.S. ZIP code on income, education, or homeownership View national rankings
- Save this ZIP to your shortlist to track alongside others you're considering View your shortlist
ZIP Code Tabulation Areas (ZCTAs) are Census Bureau approximations of USPS ZIP codes; figures describe the ZCTA area, not any single address within it.