North Carolina Elevation ToolsLook up an elevation →

North Carolina Elevation Lookup: Find the Elevation of Any Point

Checking a building site, a flood question or just curious how high your place is? Click any point in North Carolina and read the ground elevation in feet, from the USGS 3D Elevation Program's lidar.

Ready to find your elevation?

Open the tool, click anywhere on the map and see the elevation at that spot in feet above sea level.

Look up an elevation →

Find the elevation of any point in North Carolina

The Add Elevation tool reads the USGS 3DEP seamless bare-earth model at the point you click: 3.3 ft per pixel where a full-resolution lidar survey exists, about 9.8 ft per pixel where the model is built from older lidar. North Carolina's statewide lidar is published through NC OneMap and carried by USGS 3DEP. The answer comes back in feet above NAVD 88, with the coordinates of the point and the resolution of the data behind it.

Unlike a phone's altitude reading, which comes from satellite geometry or a barometer, the elevation here comes from an airborne laser survey of the ground itself. No account, nothing to install.

Why you might need an elevation

  • Building and remodeling: foundations, drainage and driveways all start from the existing ground level, and some building permit questions turn on elevation. Your county planning department will tell you which.
  • Flood questions: how high a lot sits relative to a nearby creek or river is the first thing to know before reading the FEMA flood maps.
  • Buying property: a few clicks show whether a lot sits on a rise or in a low spot where water may collect.
  • Farm and drainage planning: high ground, low ground and the fall between them decide ditches, ponds and irrigation on the flat farmland of the Coastal Plain.
  • Fieldwork and research: geography, ecology and geology all need reliable point elevations.

How to look up an elevation

  1. Open the map. It opens on the whole state; switch between aerial, topographic and relief basemaps as you like.
  2. Find your location. Search an address or a place name, or pan and zoom to the spot — a corner of a lot, a trailhead near Asheville, a field outside Greenville.
  3. Choose Add Elevation and click. The tool reads the elevation model at that point.
  4. Read the result. The elevation appears in feet, with the coordinates so you can confirm you clicked the right spot.

Click again to read another point and compare elevations across a site.

Check the elevation anywhere in North Carolina

Click any point and get the ground elevation in feet above sea level, from USGS 3DEP lidar.

Add ElevationOne point, one clickElevation profileThe ground along a whole line

Understanding the number

The elevation is the height of the ground above the NAVD 88 vertical datum, the national reference for heights in the United States, shown in feet. Zero is approximately mean sea level; a reading of 250 ft means the ground there is about 250 ft above that reference.

It describes the bare ground, not the roof of a building or the top of a tree: lidar separates ground returns from everything above them, and the 3DEP model keeps the ground. That is what planners, builders and engineers need. No DSM of what stands on the ground exists for North Carolina, so every tool on this site is bare earth.

Common uses

Building permits and planning

Elevation is part of many site questions a county asks about. A quick reading gives you a reference point for early design; the county planning department decides what it needs for the permit itself.

Flood risk

Comparing your lot's elevation with the nearby water and the FEMA flood maps is a sensible first step on any low-lying property along the Neuse, the Cape Fear, the Tar or a coastal sound.

Comparing sites

A lot on a gentle rise behaves very differently in a tropical storm from one on a river flat. Clicking a few points on each shows the difference.

Agriculture and drainage

Sampling elevations across a field finds the high ground, the natural drainage lines and the spots where water stands after rain.

School and education projects

Students can explore how elevation changes from the Outer Banks across the Coastal Plain and the Piedmont and up the Blue Ridge to Mount Mitchell.

Elevation for building and construction

Builders, architects and project managers use elevations throughout design. Where a county has set an elevation requirement for a lot, the county planning department will tell you what it is and how it must be measured; knowing the existing ground level early tells you roughly how far the design has to go.

  • Stormwater: the fall between an inlet and an outlet decides whether a pipe drains.
  • Cut and fill: existing ground versus finished grade is the starting point of every earthwork estimate — see the Cut & Fill tool.
  • Retaining walls: the elevation at the top and bottom of a proposed wall sets its height.
  • Driveways: the elevation at the road and at the garage gives the grade. The Elevation Profile tool shows it along the whole line.

A lidar reading is not a substitute for a topographic survey by a licensed land surveyor, but it is an excellent starting point for feasibility, preliminary design and due diligence.

Accuracy: lidar versus other sources

USGS 3DEP lidar (used here). Where lidar exists, the vertical accuracy is that of the lidar survey behind it, as USGS publishes it; the lidar coverage page names the survey and its quality level for any point.

Global elevation models used by many map apps are roughly 100 ft per cell or coarser and often record treetops, so readings can be far off on steep or forested ground.

Phone and handheld GPS altitude is derived from satellite geometry or a barometric sensor and is usually the least accurate number you have, especially in valleys and under trees.

Coverage across North Carolina

Ground elevations on this site come from the USGS 3D Elevation Program (3DEP) seamless bare-earth model: 3.3 ft per pixel where a full-resolution lidar survey has been flown, about 9.8 ft per pixel where the model is built from older lidar, and about 33 ft per pixel elsewhere, with elevations above NAVD 88. The data is in the public domain. North Carolina’s statewide lidar is published through NC OneMap and carried by USGS 3DEP. USGS 3DEP serves lidar-derived elevation across North Carolina: 3.3 ft per pixel where a full-resolution lidar survey exists, about 9.8 ft per pixel where the model is built from older lidar. Where a point falls outside every lidar work unit, the result shows the coarser resolution. Check any address on the lidar coverage page to see which survey flew it and when. More from the USGS 3D Elevation Program and NC OneMap’s elevation data.

Data source

  • Source: USGS 3D Elevation Program (3DEP) seamless bare-earth DEM
  • Resolution: 3.3 ft per pixel where a full-resolution lidar survey exists, about 9.8 ft per pixel from older lidar, about 33 ft per pixel elsewhere
  • Vertical datum: NAVD 88, shown in feet
  • License: U.S. Government work, public domain
  • North Carolina lidar: published through NC OneMap, carried by USGS 3DEP

Frequently asked questions

What is the elevation where I am?

Open North Carolina Elevation Tools, search your address or zoom to where you are, choose Add Elevation and click the map at your position. The tool returns the ground elevation in feet from the USGS 3DEP elevation model, which is usually far more reliable than the altitude your phone reports.

How accurate is the elevation lookup?

Accuracy is inherited from the USGS 3DEP source and the lidar project behind it, not asserted by this tool. Where a full-resolution lidar survey exists the model is 3.3 ft per pixel and its vertical accuracy is that project’s, as USGS publishes it; where the model is built from older lidar it is about 9.8 ft per pixel; outside both the seamless DEM is about 33 ft per pixel and far coarser. The lidar coverage checker names the survey, its year and its quality level at any point, and every download states what share of its area fell outside the full-resolution lidar work units. Values are bare-earth elevations above NAVD 88 from a digital elevation model — they exclude buildings and tree canopy and are not a substitute for a surveyed elevation where a legal or engineering decision depends on it.

Can I use the elevation for a building permit application?

It is a good reference for preliminary design and for understanding a site before you talk to the county. Where a specific elevation matters to a building permit — a flood elevation, a finished floor level, a height limit — your county planning department will say how it must be established, and that is often a survey by a licensed land surveyor. Check with your county.

Does it work everywhere in North Carolina?

Yes. USGS 3DEP serves lidar-derived elevation across North Carolina: 3.3 ft per pixel where a full-resolution lidar survey exists, about 9.8 ft per pixel where the model is built from older lidar. Where no lidar work unit exists at all, the USGS 3DEP seamless model falls back to coarser 1/3 arc-second data, and the tool shows the source resolution with every reading.

What does the elevation number mean?

It is the height of the bare ground above the NAVD 88 vertical datum, the US reference for “above sea level”, shown in feet. It describes the ground surface, not the top of a building or a tree.

Can I look up elevation for many points at once?

The map reads one point per click. For many points, upload a CSV of coordinates, or a GPX, KML or GeoJSON file, to Elevate a File and download it with an elevation added to every point.

Data sources and further reading

Point lookups read the same public USGS elevation model you can download yourself. These are the sources.

Primary sources

  • USGS 3D Elevation Program (3DEP) — The national program behind the elevation data: what has been flown, the specifications it was flown to, and the seamless bare-earth DEM that every elevation on this site comes from, with 3.3 ft cells where lidar exists and about 33 ft elsewhere.
  • 3DEP elevation image service — The seamless DEM as a public image service, exported as GeoTIFF for any area. The terrain tiles, downloads, contours and terrain statistics on this site are read from here.
  • The National Map Downloader — USGS’s own download tool for 3DEP tiles, lidar point clouds and the topographic map series, with no area limit.
  • 3DEP elevation index — Where each resolution of 3DEP data exists, and which lidar work unit covers a point. This site uses it for the coverage checker and to report the share of a download that fell outside 3.3 ft lidar.
  • NC OneMap elevation — North Carolina’s own elevation page: the statewide lidar-derived DEM and its derivatives, published by the NC Center for Geographic Information and Analysis, and how to download them.
  • NC OneMap parcels — The statewide compilation of the county assessors’ GIS parcels that the Property tool reads: what it contains, how often each county updates, and the county-by-county download.

Search, basemaps and terms

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