Monroe County, New York
Monroe County: county in Florida, United States
About
Monroe County is a county located in the U.S. state of New York. As of the 2010 census, the population was 744,344 and a population density of 77 people per km². After 10 years in 2020 county had an estimated population of 740,900 inhabitants. Its county seat is Key West. The county was created 202 years ago in 1823.
County Snapshot
Monroe County at a glance
Monroe County currently has 24 quality-checked populated place pages linked on MapSof, making it easier to jump from the county overview into local city pages.
Mapped populated places
24
These counts use a stricter populated-place filter so the main lists stay focused on real city and town pages.
New York counties
61
Open related pagesLargest city
GreecePopulation 95,285
Top linked places
Quick Facts about Monroe County
| Population | 740,900 (2020) |
| Country | United States of America |
| State | New York (United States) |
| Different from | Monroe County, Monroe County, Monroe County, Monroe County, Monroe County, Monroe County, Monroe County, Monroe County, Monroe County, Monroe County, Monroe County, Monroe County, Monroe County, Monroe County, Monroe County, Monroe County |
| Twitter username | monroecounty |
| Area | 9679 km2 |
| Water as percent of area | 73.7% |
| Land as percent of area | 26.3% |
| Latitude & Longitude | 43.1651,-77.6363 |
| Named for | James Monroe |
| Altitude | 558 feet / 170 meters |
| Capital | Key West |
| Establishment | July 03, 1823 |
| Time Zone | America/New_York |
| Local time | 02:01:28 (17th April 2026) |
| Density | 77 Pop. per km² as of 2020 |
| Population growth | -0.46% (2010-2020) |
| Weather | 62℉ Slight Chance Rain Showers then Mostly Cloudy 7-days weather |
Geography
Monroe County is located at 43°9'54"N 77°38'11"W (43.1651200, -77.6362600). It has 2 neighbors: Collier County and Miami Dade County.
Monroe County map
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The largest city of Monroe County is Greece with a population of 95,285. Other cities include, Irondequoit population 49,747, Henrietta population 43,503, Penfield population 37,243 and Brighton population 36,609. See all Monroe County cities & populated places.
Monroe County Populated Places (more)
Cities, towns, neighborhoods & other populated places in Monroe County.
| City Name | Population | Title |
|---|---|---|
| Greece | 95,285 | Town in New York, United States |
| Irondequoit | 49,747 | Town in Monroe County, New York, United States |
| Henrietta | 43,503 | A city in Monroe County, New York. |
| Penfield | 37,243 | Town in New York, United States |
| Brighton | 36,609 | Town in Monroe County, New York, USA |
| North Gates | 9,512 | Census-designated place in Monroe County, New York |
| Mendon | 9,274 | Town in Monroe County, New York, United States |
| Hamlin | 8,949 | Town in New York, United States |
| Brockport | 7,868 | Village in New York, United States of America |
| Rochester | 7,202 | County seat of Monroe County, New York, United States |
| Clarkson | 6,924 | City in New York, United States of America |
| East Rochester | 6,458 | Town and village in Monroe County, New York, United States of America |
| Hilton | 5,750 | Village in the state of New York, USA |
| Webster | 5,723 | Town in New York, US |
| Riga | 5,649 | City in Monroe County, New York, United States of America |
| Fairport | 5,278 | City in "Perinton, New York", New York, United States of America |
Weather
A slight chance of rain showers before 7am. Mostly cloudy, with a high near 62. North wind around 6 mph. Chance of precipitation is 20%. New rainfall...
7-Day Forecast- Key West
Demographics
According to census records, the population of Monroe County decreased by 0.46% in 10 years.
| Year | Population | % Change | Method |
|---|---|---|---|
| 2010 | 744,344 | - | census |
| 2011 | 746,751 | 0.32% | estimation process |
| 2012 | 747,344 | 0.08% | estimation process |
| 2013 | 748,290 | 0.13% | estimation process |
| 2014 | 747,364 | -0.12% | estimation process |
| 2015 | 745,577 | -0.24% | estimation process |
| 2016 | 743,770 | -0.24% | estimation process |
| 2017 | 742,724 | -0.14% | estimation process |
| 2018 | 742,864 | 0.02% | estimation process |
| 2019 | 741,770 | -0.15% | estimation process |
| 2020 | 740,900 | -0.12% | estimation process |
Other places with the same name (16)
- Monroe County, Pennsylvania county in Pennsylvania, United States with a population of 170,154 people.
- Monroe County, Michigan county in Michigan, United States with a population of 150,568 people.
- Monroe County, Indiana county in Indiana, United States with a population of 148,219 people.
- Monroe County, Florida county in Florida, United States with a population of 73,900 people.
- Monroe County, Tennessee county in Tennessee, United States with a population of 47,177 people.
- Monroe County, Wisconsin county in Wisconsin, United States with a population of 46,582 people.
- Monroe County, Mississippi county in Mississippi, United States with a population of 35,123 people.
- Monroe County, Illinois county in Illinois, United States with a population of 34,739 people.
- Monroe County, Georgia county in Georgia, United States with a population of 28,042 people.
- Monroe County, Alabama county in Alabama, United States with a population of 20,459 people.
- Monroe County, Ohio county in Ohio, United States with a population of 13,586 people.
- Monroe County, West Virginia county in West Virginia, United States with a population of 13,229 people.
- Monroe County, Kentucky county in Kentucky, United States with a population of 10,549 people.
- Monroe County, Missouri county in Missouri, United States with a population of 8,672 people.
- Monroe County, Iowa county in Iowa, United States with a population of 7,770 people.
- Monroe County, Arkansas county in Arkansas, United States with a population of 6,584 people.
New York Other Counties (more counties)
| County Name | Population | Title |
|---|---|---|
| New York City | 8,398,748 | The most populous city in the United States and the center of the New York metropolitan area. |
| Brooklyn | 2,577,000 | A borough of New York City. |
| Queens | 2,339,150 | The most populous borough of New York City. |
| Queens County | 2,225,821 | County in New York, United States |
| Manhattan | 1,644,518 | The most densely populated borough of New York City. |
| New York County | 1,611,989 | County in New York state, United States of America |
| Suffolk County | 1,474,273 | County in New York, United States |
| The Bronx | 1,455,720 | The fourth most populous borough of New York City. |
| Bronx County | 1,401,142 | Borough of New York City, United States |
| Nassau County | 1,351,334 | County in New York, United States |
| Westchester County | 965,802 | County in New York, United States. |
| Erie County | 917,241 | County in New York, United States |
| Hempstead | 764,055 | Located in Nassau County, New York, this hamlet and village is a major commercial and transportation hub. |
| Brookhaven | 479,883 | This town in Suffolk County, New York, is the most populous in the state. |
| Richmond County | 475,327 | County in Georgia, United States |
| Staten Island | 474,558 | The fifth most populous borough of New York City. |