Indianapolis covers 372 square miles (963.5 km²), making it the 16th largest city by land area in the U.S. Founded in 1821 as a planned city for the new seat of the government of Indiana, Indianapolis was platted by Alexander Ralston and Elias Pym Fordham on a 1-square-mile (2.6 km2) grid adjacent to the White River.
https://en.wikipedia.org/wiki/Indianapolis
Such developments are also benefitting from the City’s approach to walkability, where a system of trails and bike-lanes have made Carmel one of the most bike-friendly communities in Indiana. Many residents can live, work, shop and enjoy entertainment without using their cars.
http://www.carmel.in.gov/index.aspx?page=43
So 10th Street is one mile north of Washington Street, 38th Street is 3.8 miles north, 56th Street is 5.6 miles north, etc. Click here to learn how to navigate Indianapolis like a local. Author's bio: Eric Ivie is a resident of central Indiana and has been published on Yahoo Sports and Visit Hendricks County. He owns and operates Red Zone Writing. You can follow him on Facebook and Google+.
https://www.mapquest.com/us/in/indianapolis-282086418
The City of Carmel spans 47 square miles across Clay Township in Hamilton County. The City is bordered by the White River to the east; Michigan Road (U.S. 421) and the county line to the west; 96th Street to the south and 146th Street to the north.
http://www.carmel.in.gov/index.aspx?page=43
Home to about 86,000 residents (2013), the once sleepy suburban community has been transformed over the past 20 years by ambitious redevelopment projects that have led to the making of a vibrant city that is no longer simply a place to sleep at night.
http://www.carmel.in.gov/index.aspx?page=43
1 Carmel ranked #1 Best Place to Live in America by CNN Money Magazine in 2012 for cities with a population between 50,000 and 300,000.  Carmel was ranked #1 Best Town for Young Families based on public school rating, median home value, ongoing cost of home ownership, median income and economic growth.
http://www.carmel.in.gov/index.aspx?page=43
Indianapolis, IN. Online Offers. Indianapolis, Indiana, is a vibrant cultural, historical and sports mecca located in the center of the Hoosier State and serving as its capital. It is frequently referred to as the Circle City and as the Crossroads of America.
https://www.mapquest.com/us/in/indianapolis-282086418
Clockwise from top: Downtown Indianapolis from IUPUI, Indiana Statehouse, Lucas Oil Stadium, Indianapolis Motor Speedway, Indiana World War Memorial Plaza, and the Soldiers' and Sailors' Monument.
https://en.wikipedia.org/wiki/Indianapolis
Indianapolis (pronounced /ˌɪndiəˈnæpəlɪs/), officially the City of Indianapolis and Marion County, is the capital and largest city of the U.S. state of Indiana and the seat of Marion County. It is in the East North Central region of the Midwestern United States.
https://en.wikipedia.org/wiki/Indianapolis
The City of Carmel has been recognized with numerous awards and ratings for its programs and services. Carmel ranked #1 Best Place to Live in America by CNN Money Magazine in 2012 for cities with a population between 50,000 and 300,000.
http://www.carmel.in.gov/index.aspx?page=43
what is county for indianapolis
Indianapolis is in Marion County. The county of Indianpolis is Marion.