Hannibal, MO GIS Map
Hannibal is a city in Marion County, Missouri, with a population of about 17,006. The map below shows its location, boundary and surrounding roads, with federal GIS layers you can turn on for the area.
- County
- Marion County
- Population
- 17,006
- Elevation
- 501 ft
- Coordinates
- 39.7084, -91.3585
- ZIP code
- 63401
- Land area
- 16 sq mi
- Time zone
- America/Chicago
About Hannibal, MO
Hannibal is a city along the Mississippi River in Marion and Ralls counties in Missouri, United States. According to the 2020 U.S. census, the population was 17,108, making it the largest city in Marion County. The bulk of the city is in Marion County, with a tiny sliver in the south extending into Ralls County.
Source: Wikipedia (CC BY-SA 4.0)
Cities Near Hannibal
GIS Data for Hannibal, MO
The Hannibal map loads live federal GIS layers in your browser, so you can check flood zones, terrain, land cover and district boundaries for any address in Hannibal without a separate GIS login. Everything below is drawn from public U.S. government data.
Layers you can turn on
FEMA flood zones
National Flood Hazard Layer — flood insurance rate map zones.
Elevation contours and hillshade
USGS 3DEP terrain, so you can read slope and relief.
Land cover
NLCD land cover classes — forest, developed, wetland, 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.
Hannibal Demographics
Source: U.S. Census Bureau, American Community Survey 2020-2024 5-year estimates.
Population
16,771
Households
6,891
Median household income
$53,721
Median age
38.5 years
Median home value
$127,700
Median gross rent
$805/mo
Owner-occupied homes
62.2%
Bachelor's degree or higher
19.5%
Below poverty level
19.5%
Land area
16 sq mi
Population density
1,047 / sq mi
County
ZIP codes in Hannibal
Hannibal 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
17,916
April 2020 (estimates base)
17,110
July 2024 estimate
16,809
Change 2010-2020
-4.5%
Change 2020-2024
-1.8%
Photos of Hannibal
Hover over a photo to see it larger. Tap on mobile.
Photos from Wikimedia Commons, taken in or near Hannibal. Credits and licenses are shown in the larger view.
Federal Buildings & Leases in Hannibal
GSA-managed federal properties in and around Hannibal.
| Property | Address | Status | Sq ft | Lease ends |
|---|---|---|---|---|
| Hannibal Federal Building | 801 Broadway, 63401 | Owned | 64,241 | — |
| Social Security Building - Hannibal | 155 Forrest Dr, 63401 | Leased | 7,648 | Oct 2029 |
Source: U.S. GSA Inventory of Owned and Leased Properties (data.gov), September 2026.
Soils of Hannibal
General soil map unit at the city center: Winfield-Menfro
Soil Properties
- Drainage class
- Well drained
- Hydrologic soil group
- B (moderate infiltration)
- Available water storage (0–150 cm)
- 26.6 cm
- Typical slope
- 22%
- Flooding frequency
- None
Soil Components
- Menfro20%
Alfisols · Typic Hapludalfs
- Menfro15%
Alfisols · Typic Hapludalfs
- Menfro15%
Alfisols · Typic Hapludalfs
- Winfield12%
Alfisols · Oxyaquic Hapludalfs
- Haymond9%
Inceptisols · Dystric Fluventic Eutrudepts
- Goss8%
Alfisols · Typic Paleudalfs
Source: USDA NRCS U.S. General Soil Map (STATSGO2). General soil map data (1:250,000 scale) is not suitable for site-specific decisions.
Climate of Hannibal
30-year averages (1991–2020) from the Hannibal Wtr Wks, Mo weather station, elevation 712 ft, 1.3 miles from the city center.
Warmest month
Jul · avg high 86°F
Coldest month
Jan · avg low 18°F
Annual precipitation
41.3 in
Average Monthly Temperatures (°F)
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 35 | 40 | 51 | 64 | 73 | 82 | 86 | 84 | 78 | 66 | 52 | 39 |
| Avg low °F | 18 | 22 | 32 | 43 | 54 | 64 | 67 | 65 | 57 | 45 | 34 | 23 |
| Precip. in | 2.11 | 2.25 | 2.76 | 4.33 | 4.96 | 4.91 | 4.11 | 3.92 | 3.53 | 3.39 | 2.82 | 2.19 |
Source: NOAA NCEI U.S. Climate Normals, 1991–2020. Conditions at the station may differ from other parts of the city.
Natural Hazard Risk in Hannibal
FEMA National Risk Index ratings for Marion County, compared with all U.S. counties.
Overall risk
Score 47.9 of 100
Expected annual loss
Buildings, population & agriculture
Social vulnerability
Susceptibility to hazard impacts
Community resilience
Ability to prepare & recover
Risk by Hazard
- Heat WaveRelatively Moderate
- LandslideRelatively Low
- Strong WindRelatively Moderate
- HailRelatively Low
- DroughtRelatively Low
- Inland FloodingRelatively Low
- Cold WaveRelatively Low
- LightningRelatively Low
- EarthquakeVery Low
- TornadoRelatively Low
- Ice StormRelatively Low
- WildfireVery Low
- Winter WeatherRelatively Low
- HurricaneVery 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.
Hannibal FAQ
What county is Hannibal in?
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Hannibal, Missouri is located in Marion County.
What is the population of Hannibal?
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Hannibal has a population of about 17,006, making it the number 32 of the 44 Missouri cities listed on GIS Map.
What is the elevation of Hannibal?
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The elevation of Hannibal is approximately 501 feet (153 meters) above sea level at the city center.
What ZIP codes are in Hannibal?
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The ZIP code for Hannibal is 63401.
What time zone is Hannibal in?
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Hannibal is in the Central Time zone (America/Chicago).
How far is Hannibal from Jefferson City?
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Hannibal is about 90 miles from Jefferson City, the capital of Missouri, in a straight line.
How far is Hannibal from Kansas City?
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Hannibal is about 177 miles from Kansas City, the largest city in Missouri listed on GIS Map, in a straight line.
What cities are near Hannibal?
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Cities near Hannibal include Quincy, IL (16 miles); Keokuk, IA (48 miles); Moberly, MO (61 miles); Macomb, IL (63 miles); Fort Madison, IA (64 miles).
Local notes for Hannibal, MO
Questions and local knowledge from people who know the area. Every note is read before it appears here.