ZIP Code 21046
21046 is one of Maryland's ZIP codes, delivering to addresses in Columbia, Howard County.
- City
- Columbia
- County
- Howard County
- State
- Maryland
- Prefix
- 210xx
Where this code sits
21046 is part of the 210xx range, the group of codes handled by one mail processing centre. Columbia is served by 3 ZIP codes in total; the full list, with the county each falls in, is on the Columbia page.
Area codes over the same ground
Postal and telephone geography are drawn separately, so these codes cover the area 21046 delivers to without sharing its boundary.
- 227 Area code 227
- 240 Area code 240
- 301 Area code 301
- 410 Area code 410
- 443 Area code 443
- 667 Area code 667
ZIP codes nearest 21046
| ZIP code | Distance | Delivers to |
|---|---|---|
| ZIP code 21045 | 2.7 mi | Columbia, MD |
| ZIP code 20763 | 2.8 mi | Savage, MD |
| ZIP code 21044 | 3.3 mi | Columbia, MD |
| ZIP code 20723 | 3.5 mi | Laurel, MD |
| ZIP code 20794 | 3.6 mi | Jessup, MD |
| ZIP code 20701 | 3.9 mi | Annapolis Junction, MD |
| ZIP code 20759 | 4.3 mi | Fulton, MD |
| ZIP code 20707 | 4.4 mi | Laurel, MD |
Straight-line distance between place reference points, not driving distance. Where a place has no Census Gazetteer point, its postal centroid is used instead.
- Reference points and footprint
- Not an official NANPA boundary
- Not a USPS delivery area
Scope ZIP code 21046. Source GeoNames US postal codes (2026-07 postal dump) and Census 2024 county Gazetteer (2024 Gazetteer). Updated . A ZIP code is a set of delivery routes, not an area; the point shown is a record coordinate, not a centre.