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County boundaries downloaded from the U.S. Census Bureau with the tigris::counties function. Counties in the Baltimore–Columbia–Towson Metropolitan Statistical Area (MSA) include Baltimore City, Baltimore County, Carroll County, Anne Arundel County, Howard County, Queen Anne's County, and Harford County. Counties in the DC-VA-MD-WV Metropolitan Statistical Area (MSA) include Montgomery, Frederick, Prince George's, Charles, and Calvert counties. Regions are based on this resource from Visit Maryland https://www.visitmaryland.org/info/maryland-regions. Updated 2024-10-29.

Usage

md_counties

Format

A data frame with 24 rows and 18 variables:

statefp

State FIPS code for Maryland

countyfp

County FIPS code

countyns

County GNIS code

geoid

Unique county FIPS code (concatenation of state and county FIPS codes)

name

County name

namelsad

Concatenated variable length geographic area name and legal/statistical area description (LSAD)

lsad

Legal/statistical area description (LSAD)

classfp

FIPS class code

mtfcc

MAF/TIGER Feature Class Code (MTFCC)

csafp

Combined statistical area code

cbsafp

Metropolitan statistical area/micropolitan statistical area code

metdivfp

Metropolitan division code

funcstat

Functional status

aland

Land area (square meters)

awater

Water area (square meters)

intptlat

Latitude of the internal point

intptlon

Longitude of the internal point

region

Region of the state

geometry

Multipolygon with the county boundary