GIS Map

Alleghany County, North Carolina GIS Map

This GIS map of Alleghany County, North Carolina (NC) shows the official Census county boundary (FIPS 37005), with federal layers you can switch on for FEMA flood zones, USGS elevation contours and hillshade, NLCD land cover, and school district lines.

Alleghany County has a population of about 11,174 (U.S. Census Bureau, 2020-2024 ACS 5-year estimate) and a land area of 234.8 square miles. Use the inspect tool to read coordinates, elevation and the layers under any point.

State
North Carolina (NC)
Population
11,174
Land area
234.8 sq mi
Density
48 / sq mi
Coordinates
36.4894, -81.1323
FIPS code
37005

Alleghany County is not the only one — there is 1 other state with a county of the same name. Compare every Alleghany County.

Alleghany County Demographics

Source: U.S. Census Bureau, American Community Survey 2020-2024 5-year estimates.

Population

11,174

Households

5,177

Median household income

$47,172

Median age

52.6 years

Median home value

$214,800

Median gross rent

$675/mo

Owner-occupied homes

74.4%

Bachelor's degree or higher

23.6%

Below poverty level

16%

Land area

234.8 sq mi

Population density

48 / sq mi

North Carolina rankings

Richest citiesMost expensive homesMost affordable homesHighest rentMost educatedHighest poverty rateMost densely populatedLargest by population

Alleghany County Population Growth

Source: U.S. Census Bureau, 2010 Census and Population Estimates Program (Vintage 2024: April 2020 estimates base and July 1, 2024 estimate).

2010 Census

11,155

April 2020 (estimates base)

10,877

July 2024 estimate

11,379

Change 2010-2020

-2.5%

Change 2020-2024

+4.6%

Natural Hazard Risk in Alleghany County

FEMA National Risk Index ratings for Alleghany County, compared with all U.S. counties.

Overall risk

Very Low

Score 34.7 of 100

Expected annual loss

$6,628,716

Buildings, population & agriculture

Social vulnerability

Very High

Susceptibility to hazard impacts

Community resilience

Very Low

Ability to prepare & recover

Risk by Hazard

  • LandslideRelatively Moderate
  • DroughtRelatively Moderate
  • Ice StormRelatively Moderate
  • Cold WaveRelatively Moderate
  • HurricaneRelatively Low
  • WildfireVery Low
  • EarthquakeVery Low
  • Inland FloodingRelatively Low
  • LightningRelatively Low
  • TornadoRelatively Low
  • Strong WindRelatively Low
  • Winter WeatherVery Low
  • HailVery Low

Source: FEMA National Risk Index (December 2025 release). County-level ratings are relative to other U.S. counties and are not a property-specific assessment.

Environmental Conditions in Alleghany County, North Carolina

Radon potential, monitored air quality and current drought status for Alleghany County, North Carolina, from the Environmental Protection Agency and the U.S. Drought Monitor.

Radon potential

Zone 1

highest radon potential

EPA predicts an average indoor level at or above 4 pCi/L, so the EPA recommends a radon test for every home in this zone, and a mitigation system for new construction.

Drought status

Abnormally dry in 8.7% of the county

Drought Severity and Coverage Index 8.7 of 500.

  • D0 Abnormally dry8.7%

Map of 13 October 2026.

Sources: EPA Map of Radon Zones (September 2025), EPA Air Quality Index (2024) and the U.S. Drought Monitor. A radon zone is a regional planning tool, not a prediction for any individual home — the EPA recommends testing every home regardless of zone. Air quality is shown only for counties that host an EPA monitor. Drought figures describe one weekly map, not a long-term climate average. Compare counties in North Carolina.

GIS Data for Alleghany County, NC

The Alleghany County GIS map on this page loads live federal layers in your browser, so you can check flood zones, terrain, land cover and district boundaries anywhere in Alleghany County without a separate GIS login. All of the Alleghany GIS data below is drawn from public U.S. government sources.

Layers you can turn on

  • FEMA flood zones

    National Flood Hazard Layer — flood insurance rate map zones and floodways.

  • Elevation contours and hillshade

    USGS 3DEP terrain, so you can read slope and relief across the county.

  • Land cover

    NLCD land cover classes — forest, developed, wetland and water.

  • School districts

    Census TIGER unified and elementary school district boundaries.

  • ZIP code and county boundaries

    Census TIGER ZCTA and county boundary lines.

Map tools

  • Measure distance and area

    Draw a line or polygon to get length in miles or area in acres.

  • Sketch and annotate

    Add points, lines and shapes on top of the map.

  • Inspect any point

    Click the map to read coordinates, elevation and the layers under your cursor.

  • Download the map

    Save the current view as a PNG image.

Where the data comes from

County boundaries come from the U.S. Census Bureau TIGER/Line program, flood zones from FEMA's National Flood Hazard Layer, terrain from the USGS 3D Elevation Program, land cover from the Multi-Resolution Land Characteristics Consortium, and demographics from the American Community Survey.

Property records and tax maps in Alleghany County

Most people who look up Alleghany County GIS data are after parcel-level records: who owns a property, what it last sold for, and what it is assessed at. Those records are kept locally, not federally, so they are not part of this map. Alleghany County property and tax map data lives with the county's own records office, and what that office is called varies by state — Texas counties run an appraisal district (usually searched as a “CAD”), Kentucky uses a Property Valuation Administrator (PVA), and most other states use a county assessor, auditor or tax office. Start with that office for a deed, a tax map number or a parcel boundary; use the map above for flood zones, elevation and land cover on the same land.

Alleghany County FAQ

What state is Alleghany County in?

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Alleghany County is a county in North Carolina (NC).

What is the population of Alleghany County?

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Alleghany County, North Carolina has a population of about 11,174, according to the U.S. Census Bureau American Community Survey.

How big is Alleghany County?

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Alleghany County covers about 234.8 square miles of land, with a population density of roughly 48 people per square mile.

What is the FIPS code for Alleghany County?

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The FIPS county code for Alleghany County, North Carolina is 37005. It is used to identify the county in federal datasets such as Census TIGER and FEMA flood maps.

What is the median household income in Alleghany County?

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The median household income in Alleghany County, North Carolina is about $47,172 per year.

What is the radon zone for Alleghany County?

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Alleghany County is in EPA radon Zone 1, meaning the EPA predicts an average indoor radon level at or above 4 pCi/L. In this zone the EPA recommends a radon test for every home in this zone, and a mitigation system for new construction. The EPA is clear that a radon zone is a regional planning tool and not a prediction for any individual home.

Is Alleghany County in a drought?

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As of the 13 October 2026 U.S. Drought Monitor map, abnormally dry covers 8.7% of Alleghany County, and the county's Drought Severity and Coverage Index is 8.7 out of 500.

What is Alleghany GIS?

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Alleghany GIS usually refers to the county's own parcel and zoning mapping system, which Alleghany County publishes itself. This page is a separate, free viewer: it draws federal GIS layers — FEMA flood zones, USGS elevation, NLCD land cover and Census boundaries — over the Alleghany County boundary, with no login required.

What GIS data is available for Alleghany County?

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The Alleghany County map loads federal GIS layers directly in your browser: FEMA National Flood Hazard Layer flood zones, USGS 3DEP elevation contours and hillshade, NLCD land cover, Census TIGER school district boundaries, and TIGER ZIP code and county boundary lines.

How do I check flood zones in Alleghany County?

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Open the Alleghany County map, turn on the FEMA flood zones layer, and zoom in. The National Flood Hazard Layer shows flood insurance rate map zones and floodways. Flood zones only draw once you are zoomed in far enough.

How do I find the coordinates or elevation of a spot in Alleghany County?

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Use the inspect tool on the Alleghany County map and click any point. It reads back the coordinates, elevation and the layers under your cursor. You can also measure distance and area by drawing a line or polygon.

Data sources for Alleghany County, North Carolina

Every figure on this page comes from a published government dataset. Each source is listed with its release date so you can check the number or cite it directly.

  • American Community Survey 5-year estimates

    U.S. Census Bureau · 2020-2024 · population, income, housing, education and poverty figures

  • Gazetteer Files

    U.S. Census Bureau · 2024 · place coordinates, land area and the county/place/ZIP crosswalk

  • TIGER/Line Shapefiles

    U.S. Census Bureau · 2024 · county, ZIP Code Tabulation Area and school district boundaries

  • National Flood Hazard Layer

    Federal Emergency Management Agency · current effective Flood Insurance Rate Maps · flood zones, floodways and base flood elevations

  • National Risk Index

    Federal Emergency Management Agency · v1.20, December 2025 · county natural hazard risk, expected annual loss, social vulnerability and resilience

  • 3D Elevation Program (3DEP)

    U.S. Geological Survey · current · elevation contours, shaded relief and point elevations

  • National Land Cover Database

    Multi-Resolution Land Characteristics Consortium · NLCD 2021 · land cover classes such as developed, forest, crop and water

  • Map of Radon Zones

    U.S. Environmental Protection Agency · September 2025 · the county radon zone (1, 2 or 3) and its predicted indoor radon potential

  • Air Quality Index annual summary by county

    U.S. Environmental Protection Agency · 2024 · median, 90th percentile and peak AQI, and days at unhealthy levels, for counties with an EPA monitor

  • U.S. Drought Monitor

    National Drought Mitigation Center, USDA and NOAA · weekly, current map · the share of county area in each drought category and the Drought Severity and Coverage Index

  • ArcGIS basemaps

    Esri · current · streets, satellite, topographic and dark gray basemap tiles

Citing this page

GIS Map, “Alleghany County, North Carolina GIS Map”, https://gismap.land/county/north-carolina/alleghany. Figures from the datasets listed above.

How GIS Map sources and labels its data

Local notes for Alleghany County, NC

Questions and local knowledge from people who know the area. Every note is read before it appears here.