ZIP code 21230
Where is ZIP code 21230?
Baltimore, Maryland
Baltimore city · Standard ZIP code
ZIP code 21230 belongs to Baltimore, Maryland in Baltimore city. 21230 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 32,977 people live in the 21230 area, where the median household income is $91,842. The closest ZIP codes are 21203 (Baltimore, 1.4 mi north), 21233 (Baltimore, 1.4 mi north) and 21235 (Baltimore, 1.4 mi north).
| ZIP code | 21230 |
|---|---|
| Type | Standard ZIP code for street addresses and PO Boxes |
| Status | Active |
| City | Baltimore |
| State | Maryland (MD) |
| County | Baltimore city |
| Time zone | Eastern Time · now |
| Area codes | 410, 443, 667 |
| Coordinates | 39.2645, -76.6224 map |
| 3-digit prefix | 212 |
Population and income in 21230
| Population | 32,977 · higher than 85% of Maryland ZIP codes |
|---|---|
| People per square mile | 5,220 · higher than 91% of Maryland ZIP codes |
| Median age | 33.9 years · lower than 91% of Maryland ZIP codes |
| Men / women | 50% / 50% |
| Median household income | $91,842 · lower than 59% of Maryland ZIP codes |
| Income per person | $63,213 |
| Below the poverty line | 15% |
| Bachelor’s degree or higher | 59% of adults 25+ |
| Median home value | $330,100 · lower than 72% of Maryland ZIP codes |
| Median rent | $1,717 a month |
| Housing units | 18,478 |
| Households | 16,496 (1.99 people on average) |
| Owners / renters | 51% / 49% |
| Land area | 6.32 sq mi (plus 2.22 sq mi of water) |
Source: U.S. Census Bureau, American Community Survey 5-year estimates (2020–2024) for ZIP Code Tabulation Area 21230. Census ZIP areas are close to, but not exactly the same as, USPS delivery areas.
ZIP codes near 21230
| ZIP code | City | Distance | Type |
|---|---|---|---|
| 21203 | Baltimore, MD | 1.4 mi N | PO Box only |
| 21233 | Baltimore, MD | 1.4 mi N | Standard |
| 21235 | Baltimore, MD | 1.4 mi N | Unique |
| 21241 | Baltimore, MD | 1.4 mi N | Unique |
| 21263 | Baltimore, MD | 1.4 mi N | Unique |
| 21264 | Baltimore, MD | 1.4 mi N | Unique |
| 21270 | Baltimore, MD | 1.4 mi N | PO Box only |
| 21273 | Baltimore, MD | 1.4 mi N | Unique |
| 21275 | Baltimore, MD | 1.4 mi N | Unique |
| 21278 | Baltimore, MD | 1.4 mi N | Unique |
| 21279 | Baltimore, MD | 1.4 mi N | Unique |
| 21281 | Baltimore, MD | 1.4 mi N | PO Box only |
Straight-line distance between ZIP code center points. Find every ZIP code within 10 miles of 21230 or measure the distance to another ZIP code.
How to address mail to 21230
123 MAIN ST
BALTIMORE MD 21230
Put the city, the two-letter state code and the ZIP code on the last line. Adding the 4-digit ZIP+4 code (21230-XXXX) helps mail sort faster but isn’t required.
Other ZIP codes in Baltimore, MD
- 21201
- 21202
- 21203
- 21205
- 21206
- 21209
- 21210
- 21211
- 21212
- 21213
- 21214
- 21215
- 21216
- 21217
- 21218
- 21223
- 21224
- 21229
- 21231
- 21233
- 21235
- 21239
- 21240
- 21241
- 21250
- 21251
- 21263
- 21264
- 21270
- 21273
- 21275
- 21278
- 21279
- 21281
- 21287
- 21289
- 21290
- 21297
- 21298
All Baltimore ZIP codes with population and income →
Questions
- What city is ZIP code 21230?
- 21230 is a Baltimore, Maryland ZIP code.
- What county is 21230 in?
- ZIP code 21230 is in Baltimore city, Maryland.
- What time zone is ZIP code 21230 in?
- 21230 is in the Eastern Time zone (America/New_York).
- What area code is 21230?
- Phone numbers in ZIP code 21230 use area codes 410, 443 and 667.
- What is the population of ZIP code 21230?
- About 32,977 people live in ZIP code 21230, according to the Census Bureau’s American Community Survey (2020–2024).
- What is the median income in 21230?
- The median household income in 21230 is $91,842 a year, lower than 59% of Maryland ZIP codes.
- What ZIP codes are near 21230?
- The nearest ZIP codes to 21230 are 21203 (Baltimore, 1.4 miles), 21233 (Baltimore, 1.4 miles), 21235 (Baltimore, 1.4 miles) and 21241 (Baltimore, 1.4 miles).