What city is ZIP code 59623?

59623 is a Helena, Montana ZIP code.

What county is 59623 in?

ZIP code 59623 is in Lewis and Clark County, Montana.

What time zone is ZIP code 59623 in?

59623 is in the Mountain Time zone (America/Denver).

What area code is 59623?

Phone numbers in ZIP code 59623 use area code 406.

Can I use 59623 for a street address?

Only for mail to the organization it is assigned to. Other addresses in Helena use a standard ZIP code.

What ZIP codes are near 59623?

The nearest ZIP codes to 59623 are 59620 (Helena, 0.3 miles), 59624 (Helena, 0.3 miles), 59626 (Helena, 0.3 miles) and 59625 (Helena, 0.8 miles).

ZIP code 59623

Where is ZIP code 59623?

Helena, Montana

Lewis and Clark County · Unique ZIP code

ZIP code 59623 belongs to Helena, Montana in Lewis and Clark County. 59623 is a unique ZIP code assigned to a single organization (City County Building) that gets a lot of mail. It is in the Mountain Time zone and uses area code 406. The closest ZIP codes are 59620 (Helena, 0.3 mi northeast), 59624 (Helena, 0.3 mi northeast) and 59626 (Helena, 0.3 mi northeast).

ZIP code	59623
Type	Unique ZIP code for a single organization
Status	Active
City	Helena
State	Montana (MT)
County	Lewis and Clark County
Time zone	Mountain Time · now
Area code	406
Coordinates	46.5901, -112.0402 map
3-digit prefix	596

The Census Bureau doesn’t publish population figures for unique 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 59623

ZIP code	City	Distance	Type
59620	Helena, MT	0.3 mi NE	PO Box only
59624	Helena, MT	0.3 mi NE	PO Box only
59626	Helena, MT	0.3 mi NE	Standard
59625	Helena, MT	0.8 mi N	Unique
59601	Helena, MT	1.8 mi NE	Standard
59636	Fort Harrison, MT	3.9 mi NW	PO Box only
59604	Helena, MT	6.3 mi NE	PO Box only
59635	East Helena, MT	6.4 mi E	Standard
59602	Helena, MT	9 mi NE	Standard
59634	Clancy, MT	9 mi S	Standard
59638	Jefferson City, MT	15.4 mi S	PO Box only
59633	Canyon Creek, MT	16.5 mi NW	Standard

Straight-line distance between ZIP code center points. Find every ZIP code within 10 miles of 59623 or measure the distance to another ZIP code.

How to address mail to 59623

JANE SMITH
123 MAIN ST
HELENA MT 59623

Put the city, the two-letter state code and the ZIP code on the last line. Adding the 4-digit ZIP+4 code (59623-XXXX) helps mail sort faster but isn’t required.

Other ZIP codes in Helena, MT

All Helena ZIP codes with population and income →

Questions

What city is ZIP code 59623?: 59623 is a Helena, Montana ZIP code.
What county is 59623 in?: ZIP code 59623 is in Lewis and Clark County, Montana.
What time zone is ZIP code 59623 in?: 59623 is in the Mountain Time zone (America/Denver).
What area code is 59623?: Phone numbers in ZIP code 59623 use area code 406.
Can I use 59623 for a street address?: Only for mail to the organization it is assigned to. Other addresses in Helena use a standard ZIP code.
What ZIP codes are near 59623?: The nearest ZIP codes to 59623 are 59620 (Helena, 0.3 miles), 59624 (Helena, 0.3 miles), 59626 (Helena, 0.3 miles) and 59625 (Helena, 0.8 miles).