ZIP code 21034
Where is ZIP code 21034?
Darlington, Maryland
Harford County · Standard ZIP code
ZIP code 21034 belongs to Darlington, Maryland in Harford County. 21034 is a standard ZIP code, so it covers street addresses as well as PO Boxes. It is in the Eastern Time zone and uses area codes 410, 443 and 667. About 2,846 people live in the 21034 area, where the median household income is $78,047. The closest ZIP codes are 21918 (Conowingo, 4.1 mi northeast), 21160 (Whiteford, 6 mi northwest) and 21028 (Churchville, 6.3 mi south).
| ZIP code | 21034 |
|---|---|
| Type | Standard ZIP code for street addresses and PO Boxes |
| Status | Active |
| City | Darlington |
| State | Maryland (MD) |
| County | Harford County |
| Time zone | Eastern Time · now |
| Area codes | 410, 443, 667 |
| Coordinates | 39.654, -76.2278 map |
| 3-digit prefix | 210 |
Population and income in 21034
| Population | 2,846 · lower than 60% of Maryland ZIP codes |
|---|---|
| People per square mile | 107 · lower than 76% of Maryland ZIP codes |
| Median age | 45.1 years · higher than 67% of Maryland ZIP codes |
| Men / women | 57% / 44% |
| Median household income | $78,047 · lower than 79% of Maryland ZIP codes |
| Income per person | $43,178 |
| Below the poverty line | 9.7% |
| Bachelor’s degree or higher | 23% of adults 25+ |
| Median home value | $401,500 · lower than 54% of Maryland ZIP codes |
| Median rent | $1,151 a month |
| Housing units | 1,151 |
| Households | 1,132 (2.51 people on average) |
| Owners / renters | 90% / 10% |
| Land area | 26.67 sq mi (plus 2.83 sq mi of water) |
Source: U.S. Census Bureau, American Community Survey 5-year estimates (2020–2024) for ZIP Code Tabulation Area 21034. Census ZIP areas are close to, but not exactly the same as, USPS delivery areas.
ZIP codes near 21034
| ZIP code | City | Distance | Type |
|---|---|---|---|
| 21918 | Conowingo, MD | 4.1 mi NE | Standard |
| 21160 | Whiteford, MD | 6 mi NW | Standard |
| 21028 | Churchville, MD | 6.3 mi S | Standard |
| 21917 | Colora, MD | 7.2 mi E | Standard |
| 21154 | Street, MD | 7.6 mi W | Standard |
| 17563 | Peach Bottom, PA | 8.5 mi N | Standard |
| 21904 | Port Deposit, MD | 9.2 mi E | Standard |
| 17314 | Delta, PA | 9.2 mi NW | Standard |
| 21078 | Havre De Grace, MD | 9.2 mi SE | Standard |
| 21015 | Bel Air, MD | 9.7 mi SW | Standard |
| 21911 | Rising Sun, MD | 9.8 mi E | Standard |
| 21132 | Pylesville, MD | 10.2 mi W | Standard |
Straight-line distance between ZIP code center points. Find every ZIP code within 10 miles of 21034 or measure the distance to another ZIP code.
How to address mail to 21034
123 MAIN ST
DARLINGTON MD 21034
Put the city, the two-letter state code and the ZIP code on the last line. Adding the 4-digit ZIP+4 code (21034-XXXX) helps mail sort faster but isn’t required.
Questions
- What city is ZIP code 21034?
- 21034 is a Darlington, Maryland ZIP code.
- What county is 21034 in?
- ZIP code 21034 is in Harford County, Maryland.
- What time zone is ZIP code 21034 in?
- 21034 is in the Eastern Time zone (America/New_York).
- What area code is 21034?
- Phone numbers in ZIP code 21034 use area codes 410, 443 and 667.
- What is the population of ZIP code 21034?
- About 2,846 people live in ZIP code 21034, according to the Census Bureau’s American Community Survey (2020–2024).
- What is the median income in 21034?
- The median household income in 21034 is $78,047 a year, lower than 79% of Maryland ZIP codes.
- What ZIP codes are near 21034?
- The nearest ZIP codes to 21034 are 21918 (Conowingo, 4.1 miles), 21160 (Whiteford, 6 miles), 21028 (Churchville, 6.3 miles) and 21917 (Colora, 7.2 miles).