listCounties: List available counties for a state

In multigroup.vaccine: Analyze Outbreak Models of Multi-Group Populations with Vaccination

List available counties for a state

Description

List available counties for a state

Usage

listCounties(
  state_fips,
  year = 2024,
  csv_path = NULL,
  cache_dir = NULL,
  verbose = FALSE
)

Arguments

state_fips	Two-digit FIPS code for the state
year	Census year (2020-2024), default 2024
csv_path	Optional path to a previously downloaded census CSV file
cache_dir	Optional directory path for caching downloaded census files
verbose	Logical, if TRUE prints messages about data loading. Default is FALSE.

Value

Character vector of county names

Examples

# Use the included example data
utah_counties <- listCounties(
  state_fips = "49", 
  year = 2024,
  csv_path = getCensusDataPath()
)


# Download from web (requires internet)
utah_counties_web <- listCounties(state_fips = "49", year = 2024)

# With caching
utah_counties_cached <- listCounties(state_fips = "49", cache_dir = "~/census_cache")

multigroup.vaccine documentation built on Sept. 19, 2026, 1:06 a.m.