USDA SSURGO COUNTY SOIL REFERENCE

Orange County, Florida Soil Summary

This page summarizes USDA SSURGO mapped soil information for Orange County, Florida.

Mapped Land Coverage
99.95%641,862.57 mapped acres of 642,198.71 Census land acres

Coverage measures mapped SSURGO intersection with Census land geometry. It does not mean that every parcel or point has complete soil information.

Soil at a Glance

Largest mapped soil unit
Smyrna-Smyrna, wet, fine sand, 0 to 2 percent slopes
Symbol: 443.19% of mapped area
Largest estimated component
Water
26,917.83 acres (4.19% of mapped area)
Mapped units & components
15 soil units • 15 component series
Distinct SSURGO map units & series
Dominant drainage class
Well drained
Highest acreage drainage class
Dominant hydrologic group
Group D
Runoff potential classification
Weighted average slope
8.45%
Terrain slope analysis
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Mapped SSURGO Soil Units

Largest mapped soil units in Orange County ranked by intersected vector acreage
SymbolMap Unit NameMapped Acres% of Mapped Area
44Smyrna-Smyrna, wet, fine sand, 0 to 2 percent slopes20,501.223.19%
WWater10,524.391.64%
URLXUrban land10,146.451.58%
99Water9,132.131.42%
MdBMardin gravelly silt loam, 3 to 8 percent slopes8,728.781.36%
TrDTunbridge-Woodstock very rocky fine sandy loams, 8 to 25 percent slopes8,579.211.34%
AcmFAdyeville-Wellston silt loams, 18 to 50 percent slopes8,353.951.3%
GoAGoldsboro sandy loam, 0 to 2 percent slopes7,746.231.21%
TwETunbridge-Woodstock complex, 25 to 50 percent slopes7,282.861.13%
153Friant fine sandy loam, 30 to 75 percent slopes7,024.831.09%
GeBGeorgeville silt loam, 2 to 6 percent slopes6,936.421.08%
BvCBuckland loam, 8 to 25 percent slopes, very stony6,863.681.07%
WppD2Wellston-Adyeville-Ebal silt loams, 12 to 18 percent slopes, eroded6,285.620.98%
LeaALeague clay, 0 to 1 percent slopes6,223.910.97%
142Cieneba sandy loam, 30 to 75 percent slopes, eroded5,956.270.93%

Estimated Soil Components

Component acreage estimated from SSURGO component percentages
ComponentDrainage ClassHydrologic GroupEstimated Acres% of Mapped Area
WaterUnspecifiedD26,917.834.19%
SmyrnaSomewhat poorly drained, Poorly drainedA, A/D21,018.23.27%
Urban landUnspecifiedD17,181.062.68%
MardinModerately well drainedD16,624.232.59%
Rock outcropWell drained, Excessively drainedD12,025.071.87%
BucklandModerately well drainedC/D, D10,739.251.67%
GeorgevilleWell drainedB10,365.651.61%
CienebaSomewhat excessively drainedD10,065.611.57%
ColrainWell drainedA9,635.511.5%
WellstonWell drainedB, C9,004.341.4%
TunbridgeWell drainedC8,495.911.32%
LeagueSomewhat poorly drainedD8,064.81.26%
GoldsboroModerately well drainedC, B/D7,741.871.21%
RainsPoorly drainedC/D, B/D7,583.481.18%
LabelleSomewhat poorly drainedD7,516.111.17%
Component acreage is estimated from SSURGO map-unit component percentages. Component values are not independently mapped polygon boundaries.

Drainage Class Distribution

Well drained28.82%
185,006.39 acres
Poorly drained16.62%
106,701.96 acres
Moderately well drained12.88%
82,643.34 acres
Unknown / Unmapped11.75%
75,399.49 acres
Somewhat poorly drained10.09%
64,774.22 acres
Very poorly drained8.47%
54,334.62 acres
Somewhat excessively drained8.09%
51,914.59 acres
Excessively drained2.12%
13,612.01 acres

Hydrologic Soil Group Distribution

Group D30.88%
198,232.4 acres
Group B14.73%
94,534.08 acres
Group C14.06%
90,220.62 acres
Group A9.58%
61,520.53 acres
Group Unknown / Unmapped8.93%
57,347.34 acres
Group A/D7.85%
50,388.31 acres
Group C/D6.56%
42,096.2 acres
Group B/D6.24%
40,047.15 acres

Hydrologic soil groups are USDA/NRCS classifications related to runoff potential under specified soil conditions. They are not a property-level flood-risk rating.

Slope Characteristics

Weighted Average Slope: 8.45%
Nearly Level (0-2%)45.04%
289,094.5 acres
Gently Sloping (2-8%)19.69%
126,363.32 acres
Moderately Sloping (8-15%)10.01%
64,262.54 acres
Steep (15-30%)8.51%
54,626.96 acres
Very Steep (>30%)7.97%
51,166.81 acres
Unspecified Slope7.61%
48,872.51 acres

Sources & Methodology

USDA NRCS SSURGO

Mapped soil units, components, drainage classes, hydrologic groups, and slope ratings derived from official Soil Data Access REST services.

U.S. Census Bureau TIGER/Line

County land geometry used for county-level coverage calculation.

Coverage Method

Mapped acreage is calculated from true spatial vector intersection of county land geometry and SSURGO mapped soil polygons using NAD83 / CONUS Albers Equal Area projection (EPSG:5070).