ZIP Code 48630 — Houghton Lake Heights, MI
48630 is a standard (street delivery) ZIP code serving Houghton Lake Heights, Michigan, in Roscommon County. To mail something here you only need these five digits — but the four-digit extension narrows delivery to a single point, and it is what USPS bulk postage discounts are priced on.
ZIP code 48630 at a glance
| ZIP code | 48630 |
|---|---|
| Primary city | Houghton Lake Heights |
| State | Michigan (MI) |
| County | Roscommon FIPS 26143 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Detroit |
| Population | 61 |
| Coordinates | 44.325320, -84.773000 |
How ZIP+4 works in 48630
The four digits after the hyphen encode a delivery segment inside 48630. In practice one segment usually means:
- One side of one block — odd numbers on a street between two cross streets
- A single large building, or one floor of it
- A group of PO boxes, sometimes a single box
- A single business that receives enough mail to warrant its own code
That is why 48630 has no single ZIP+4: two neighbors across the street from each other usually have different ones. Enter a street address above and we will return the exact nine-digit code along with the standardized USPS address format.
Nearby ZIP codes
Showing the closest twelve. See every ZIP code within 25 miles of 48630.
| ZIP | City | Distance |
|---|---|---|
| 48629 | Houghton Lake, MI | 1.1 mi |
| 49667 | Merritt, MI | 7.4 mi |
| 48651 | Prudenville, MI | 9.3 mi |
| 48627 | Higgins Lake, MI | 9.5 mi |
| 49632 | Falmouth, MI | 11.5 mi |
| 48653 | Roscommon, MI | 14 mi |
| 48656 | Saint Helen, MI | 15.6 mi |
| 49651 | Lake City, MI | 17.3 mi |
| 48625 | Harrison, MI | 19.3 mi |
| 49657 | Mcbain, MI | 21.3 mi |
| 49665 | Marion, MI | 23.6 mi |
| 48624 | Gladwin, MI | 24 mi |
Questions about 48630
What is the ZIP+4 code for 48630?
48630 is the five-digit ZIP code. The ZIP+4 adds four more digits that identify a specific delivery point — usually one side of a city block, a single building, or a group of PO boxes. Because those four digits change from address to address within 48630, you need to look up a specific street address to get them.
What city is 48630?
48630 is assigned to Houghton Lake Heights, Michigan, in Roscommon County.
Do I need to use the ZIP+4?
It is optional for ordinary mail, but it speeds up sorting and it is required for most USPS bulk-mail postage discounts. Many address-verification and e-commerce systems also use ZIP+4 to confirm a delivery point exists.
Need thousands of these?
Upload a CSV and get ZIP+4, county, carrier route, and delivery-point data appended to every row — or call the API directly.