ZIP code 06721
Where is ZIP code 06721?
Waterbury, Connecticut
New Haven County · PO Box only ZIP code
ZIP code 06721 belongs to Waterbury, Connecticut in New Haven County. 06721 is a PO Box only ZIP code: it is used for post office boxes at the Waterbury post office, not for street addresses. It is in the Eastern Time zone and uses area code 203. The closest ZIP codes are 06701 (Waterbury, 0 mi north), 06703 (Waterbury, 0 mi north) and 06720 (Waterbury, 0 mi north).
| ZIP code | 06721 |
|---|---|
| Type | PO Box only (no street delivery) |
| Status | Active |
| City | Waterbury |
| State | Connecticut (CT) |
| County | New Haven County |
| Time zone | Eastern Time · now |
| Area code | 203 |
| Coordinates | 41.5582, -73.0515 map |
| 3-digit prefix | 067 |
The Census Bureau doesn’t publish population figures for po box only ZIP codes because nobody lives at a PO Box or a single organization’s address. For figures about the area, see the nearby standard ZIP codes below.
ZIP codes near 06721
| ZIP code | City | Distance | Type |
|---|---|---|---|
| 06701 | Waterbury, CT | 0 mi N | Standard |
| 06703 | Waterbury, CT | 0 mi N | PO Box only |
| 06720 | Waterbury, CT | 0 mi N | PO Box only |
| 06722 | Waterbury, CT | 0 mi N | PO Box only |
| 06723 | Waterbury, CT | 0 mi N | PO Box only |
| 06724 | Waterbury, CT | 0 mi N | PO Box only |
| 06725 | Waterbury, CT | 0 mi N | PO Box only |
| 06726 | Waterbury, CT | 0 mi N | PO Box only |
| 06749 | Waterbury, CT | 0 mi N | Unique |
| 06702 | Waterbury, CT | 0.7 mi E | Standard |
| 06710 | Waterbury, CT | 0.7 mi N | Standard |
| 06708 | Waterbury, CT | 0.8 mi SW | Standard |
Straight-line distance between ZIP code center points. Find every ZIP code within 10 miles of 06721 or measure the distance to another ZIP code.
How to address mail to 06721
PO BOX 123
WATERBURY CT 06721
Put the city, the two-letter state code and the ZIP code on the last line. Avoid Wtby: USPS doesn’t recognize it as the city for this ZIP code. Adding the 4-digit ZIP+4 code (06721-XXXX) helps mail sort faster but isn’t required.
Other ZIP codes in Waterbury, CT
All Waterbury ZIP codes with population and income →
Questions
- What city is ZIP code 06721?
- 06721 is a Waterbury, Connecticut ZIP code.
- What county is 06721 in?
- ZIP code 06721 is in New Haven County, Connecticut.
- What time zone is ZIP code 06721 in?
- 06721 is in the Eastern Time zone (America/New_York).
- What area code is 06721?
- Phone numbers in ZIP code 06721 use area code 203.
- Can I use 06721 for a street address?
- No. 06721 is only for PO Boxes. Street addresses in Waterbury use 06701, 06702, 06704.
- What ZIP codes are near 06721?
- The nearest ZIP codes to 06721 are 06701 (Waterbury, 0 miles), 06703 (Waterbury, 0 miles), 06720 (Waterbury, 0 miles) and 06722 (Waterbury, 0 miles).