947 Area Code — Michigan
947 is a North American Numbering Plan area code for Michigan, the United States. It covers about 1,271,552 people in 37 towns and 83 ZIP codes, including Rochester, Farmington and Troy.
| Field | Value |
|---|---|
| Area code | 947 |
| Country | United States (+1) |
| State / province | Michigan |
| Type | Shares its towns with 248 |
| Time zone | Eastern |
| Population covered | 1,271,552 |
| Towns covered | 37 |
| ZIP codes | 83 |
| Approx. centre | 42.590, -83.325 |
Where area code 947 is used
Area code 947 is assigned to Michigan, the United States, inside the North American Numbering Plan. Numbers in the code are written (947) NXX-XXXX at home and +1 947 NXX-XXXX when dialled from outside Canada and the United States. Since the NANP moved to 10-digit dialling you must always include the area code, even for a local call.
Other area codes in this footprint: 248. They serve towns in the same territory, so a single street can contain numbers from more than one code. That is normal in the NANP and does not change how you dial.
Towns and cities in area code 947
The 37 towns below are the largest in the 947 footprint, ranked by population. Every one of them links to its own page with the full list of area codes and ZIP codes for that town.
| Town | County | Population | ZIP codes |
|---|---|---|---|
| Rochester | Oakland County | 103,788 | 4 |
| Farmington | Oakland County | 92,689 | 6 |
| Troy | Oakland County | 87,898 | 6 |
| Southfield | Oakland County | 80,319 | 6 |
| Waterford | Oakland County | 70,153 | 3 |
| West Bloomfield | Oakland County | 67,218 | 4 |
| Pontiac | Oakland County | 62,157 | 4 |
| Novi | Oakland County | 61,517 | 4 |
| Royal Oak | Oakland County | 57,974 | 3 |
| Northville | Oakland County | 49,751 | 2 |
| Bloomfield Hills | Oakland County | 49,574 | 4 |
| Clarkston | Oakland County | 47,741 | 3 |
Counties covered
| County | ZIP codes |
|---|---|
| Oakland County | 82 |
| Wayne County | 1 |
Other area codes serving the same towns
Nearby area codes
How to dial area code 947
- Within North America: 947 + 7-digit number (947-NXX-XXXX). The leading 1 is optional on a mobile phone and required on most landlines for long-distance.
- From abroad: your country's international prefix, then 1, then 947, then the 7-digit number — for example 00 1 947 NXX-XXXX from most of Europe.
Frequently asked questions
What area code is 947?
947 is a North American Numbering Plan area code assigned to Michigan, the United States. It covers about 1,271,552 people in 37 towns.
Is 947 a US or Canadian area code?
947 is a United States area code. Canada and the United States share the +1 country code, so both are part of the same numbering plan.
What time zone is area code 947 in?
Area code 947 is in the Eastern time zone.
Do I have to dial 10 digits?
Yes. Every NANP call now requires the area code plus the seven-digit number, even for a local call.