Area Code 586
Michigan
Area code 586 serves Michigan, primarily Warren, in the Eastern Time (ET) time zone. It was created from a split of area code 810.
Split Area Code
This area code was created by splitting an existing area code into separate geographic regions. When a split occurs, some customers in the original area code region are assigned the new area code.
This area code was split from area code 810 (Flint).
In service since: 22-Sep-2001
Demographics & Economics
- Total Population
- 889,487
- Population Density
- 1,654 people/sq miabove U.S. average (U.S.: 93 people/sq mi)
- Median Household Income
- $76,399near U.S. median (U.S.: $75,144)
- Poverty Rate
- 9.8%below U.S. average (U.S.: 11.5%)
- Unemployment Rate
- 5.8%above U.S. average (U.S.: 3.6%)
- Education Attainment
- Bachelor's Degree+27.1%below U.S. average (U.S.: 33.7%)High School or Lower32.5%
Statistics are population-weighted aggregations from Census ACS 5-year estimates. Population figures are approximate — see Sources & Methodology for details on how area code populations are derived.
See how this area code compares to all US area codes in the income ranking and density ranking.
Time Zone
- Eastern Time (ET)
NANPA Relief Status
According to the latest NANPA analysis (July 2026), this area code is not currently listed as exhausting within the next 36 months. No relief planning is in progress for this NPA.
Source: NANPA NPA Relief Planning Reports · See all relief planning statuses
Current Time
Prefix Utilization
Geographic Coverage
State
MI
Major Cities
- Warren
- Sterling Heights
- St. Clair Shores
- Roseville
- Eastpointe
- Mount Clemens
- Fraser
- New Baltimore
- Center Line
- New Haven
- Richmond
- Utica
- Romeo
- Clinton
- Shelby
- Armada
- Saint Clair Shores


Demographics
The estimated population served by area code 586 is approximately 889,487. The population density is 1,654 people per square mile, which is higher than the national average of 93. The median household income is $76,399, which is near the national median of $75,144. Approximately 27.1% of adults hold a bachelor's degree or higher, compared to the national rate of 33.7%. This rate is lower than the national average. The poverty rate stands at 9.8%, which is lower than the national rate of 11.5%.
History
Area code 586 was created from a split of area code 810. It was introduced in 2001 as part of a geographic division to provide additional numbering resources.
County Coverage
Population-weighted county share based on aggregated ZCTA population (100% = total mapped population for area code 586).
| County | Population | Share |
|---|---|---|
| Macomb, MI | 876,405 | 98.5% |
| St. Clair, MI | 13,082 | 1.5% |
Area Code 586 Family Tree
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Area code 586 was originally assigned in 22-Sep-2001 to serve MI.
Call Context
This area code serves a major metropolitan region with high population density in MI. The primary city is Warren.
Nearby Area Codes
Area codes geographically closest to 586.













Other Area Codes in Michigan
Area codes that also serve Michigan, linked for easy comparison.












