ZIP Code 21036
standardSource:
Dayton · Howard County · Maryland
- Population
- 2,114
- Median income
- $218,036
- Median home value
- $881,300
- Bachelor's or higher
- 71.3%
- Land area
- 16.3 sq mi
130/sq mi
▲ 186% vs US
higher than 99% of US ZIPs
▲ 217% vs US
higher than 97% of US ZIPs
Median age 48.8
New York
ZIP code 21036 in Dayton, Maryland has a population of 2,114. The median household income is $218,036, which is 186% above the national average. Median home value is $881,300, 217% above the US average. 71.3% of residents hold a bachelor's degree or higher.
ZIP code 21036 is classified by USPS as a standard delivery area and covers roughly 16.3 square miles in Dayton, Howard County, Maryland. The area is home to 2,114 residents, producing a population density of 130 people per square mile, and falls within the New York time zone. These USPS and Census boundary values drive every downstream statistic on this page, including the benchmarks that compare 21036 against Maryland and the nation.
On the economic side, the median household income for ZIP 21036 sits at $218,036 (91% above the Maryland average), while per-capita income is $88,079. The poverty rate stands at 2.2% and the unemployment rate at 7.4%. On housing, the median home value is $881,300 (97% above the state average) with median rent at — per month, and 99.3% of occupied units are owner-occupied, a direct signal of whether 21036 behaves more like a homeowner neighborhood or a renter-heavy ZIP.
Education and household profile round out the picture: 71.3% of adults hold a bachelor's degree or higher, the median age is 48.8, and the average commute is —. We also surface 10 nearby ZIP codes within roughly 10 miles and 6 additional ZIPs sharing Howard County, so you can benchmark 21036 against its immediate geography rather than a national average alone. Every figure is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates, HUD Fair Market Rents, and FHFA Home Price Index data, no estimates, no proprietary scoring. Verify with HUD →
Top industries in ZIP 21036
Top 5 sectors by establishment count
Which industries have the most business establishments in ZIP 21036.
- Construction
Construction
13 establishments
- Professional, scientific, and technical services
Professional, scientific, and technical services
10 establishments
- Administrative and support and waste management and remediation services
Administrative and support and waste management and remediation services
6 establishments
- Health care and social assistance
Health care and social assistance
6 establishments
- Retail trade 3
Retail trade
3 establishments
What this shows Establishment counts come from the Census ZIP Code Business Patterns program, which counts physical business locations rather than employees or revenue.
Source: U.S. Census Bureau, American Community Survey 5-Year Estimates + ZIP Code Business Patterns + HUD FMR + FHFA HPI ACS demographics, ZBP business establishments, HUD Fair Market Rents, FHFA HPI for ZIP 21036, Dayton, MD · 2023 Census ACS 5-Year Estimates use a rolling 60-month sample for stable small-geography estimates; ZBP updated annually; HUD FMR + FHFA HPI updated quarterly/annually.
Quick Facts
2,114
Population
16.3
Area (sq mi)
130
People / sq mi
New York
Time Zone
standard
ZIP Type
Who lives in ZIP 21036?
48.8
Median Age
51.6%
Male
48.4%
Female
8.0%
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?
$218,036
Median Household Income
+91% vs state
$88,079
Per Capita Income
2.2%
Poverty Rate
7.4%
Unemployment Rate
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?
905
Total Housing Units
882
Occupied Units
23
Vacant Units
2.86
Avg Household Size
Occupancy Type
$881,300
Median Home Value
+97% vs state
1984
Median Year Built
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
How have home values changed over time?
FHFA House Price Index, annual appreciation data based on repeat sales and appraisals
+6.5%
YoY Change (2023)
229
HPI Index (2000 = 100)
+129%
Total Change Since 2000
Home values in ZIP 21036 have increased 6.5% over the past year (2023). Since 2000, this ZIP has seen +129% cumulative appreciation.
| Year | Annual Change | HPI Index |
|---|---|---|
| 2019 | +4.5% | 183 |
| 2020 | +0.2% | 183 |
| 2021 | +8.0% | 197 |
| 2022 | +9.0% | 215 |
| 2023 | +6.5% | 229 |
Source: Federal Housing Finance Agency (FHFA) House Price Index, All-Transactions, Five-Digit ZIP Codes (Developmental Index). Index base = 100 in year 2000. Data through 2023. ZIP codes with few transactions may show missing values.
What businesses operate in this ZIP?
Census Bureau data shows 49 business establishments in ZIP 21036, employing approximately 263 people with a combined annual payroll of $19,493,000.
49
Businesses
263
Employees
$19.5M
Annual Payroll
7
Industry Sectors
| Industry | Establishments | % of Total |
|---|---|---|
| Construction | 13 | 26.5% |
| Professional, scientific, and technical services | 10 | 20.4% |
| Administrative and support and waste management and remediation services | 6 | 12.2% |
| Health care and social assistance | 6 | 12.2% |
| Retail trade | 3 | 6.1% |
| Finance and insurance | 3 | 6.1% |
| Real estate and rental and leasing | 3 | 6.1% |
Source: U.S. Census Bureau, ZIP Code Business Patterns (ZBP), 2023. Employment figures may include noise for disclosure avoidance.
Nearby ZIP Codes
Want a side-by-side? Compare 21036 vs 21737 →
| ZIP Code | City | Population | Distance |
|---|---|---|---|
| 21737 | Glenelg, MD | 1,458 | 1.7 mi |
| 20862 | Brinklow, MD | 343 | 3.6 mi |
| 21738 | Glenwood, MD | 3,268 | 3.5 mi |
| 21029 | Clarksville, MD | 11,333 | 3.3 mi |
| 20833 | Brookeville, MD | 7,735 | 3.4 mi |
| 20861 | Ashton, MD | 1,875 | 5.6 mi |
| 21794 | West Friendship, MD | 2,434 | 4.6 mi |
| 20777 | Highland, MD | 3,314 | 4.5 mi |
| 21723 | Cooksville, MD | 803 | 6.3 mi |
| 20860 | Sandy Spring, MD | 2,396 | 6.1 mi |
More ZIP Codes in Howard County
Related Areas
Frequently Asked Questions
What county is ZIP code 21036 in? ▼
What is the population of ZIP code 21036? ▼
What is the median household income in ZIP 21036? ▼
What is the average home value in ZIP 21036? ▼
What is the demographic makeup of ZIP 21036? ▼
How many businesses are in ZIP code 21036? ▼
What are the main industries in ZIP code 21036? ▼
How have home values changed in ZIP code 21036? ▼
What is the education level in ZIP code 21036? ▼
What percentage of residents own vs. rent in ZIP 21036? ▼
What is the poverty rate in ZIP code 21036? ▼
ZIP Code Research Guides
Official Data Resources for Dayton, MD
Verify and explore additional data for this area using these official government sources.
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023). Business data: Source: Census ZIP Code Business Patterns (ZBP) 2023. Home value trends: Source: FHFA House Price Index (HPI), Five-Digit ZIP Codes.
PlainZIP is not affiliated with the U.S. Census Bureau or any government agency.
Read our methodology , how this data is sourced, computed, and verified.