ZIP Code 60099 — Zion, IL
60099 is a standard (street delivery) ZIP code serving Zion, Illinois, in Lake 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 60099 at a glance
| ZIP code | 60099 |
|---|---|
| Primary city | Zion |
| State | Illinois (IL) |
| County | Lake FIPS 17097 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 30,881 |
| Coordinates | 42.460530, -87.869010 |
How ZIP+4 works in 60099
The four digits after the hyphen encode a delivery segment inside 60099. 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 60099 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 60099.
| ZIP | City | Distance |
|---|---|---|
| 60096 | Winthrop Harbor, IL | 2.4 mi |
| 60075 | Russell, IL | 3.1 mi |
| 60087 | Waukegan, IL | 3.9 mi |
| 60083 | Wadsworth, IL | 4.3 mi |
| 53158 | Pleasant Prairie, WI | 4.5 mi |
| 53142 | Kenosha, WI | 6.8 mi |
| 60031 | Gurnee, IL | 7 mi |
| 53143 | Kenosha, WI | 7.2 mi |
| 60085 | Waukegan, IL | 7.3 mi |
| 60064 | North Chicago, IL | 9.4 mi |
| 60046 | Lake Villa, IL | 10.2 mi |
| 60088 | Great Lakes, IL | 10.6 mi |
Questions about 60099
What is the ZIP+4 code for 60099?
60099 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 60099, you need to look up a specific street address to get them.
What city is 60099?
60099 is assigned to Zion, Illinois, in Lake 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.