Los Angeles County Soil Data

Los Angeles County, California

Avg pH

N/A

Texture

Unknown

Drainage

N/A

Organic Matter

N/A

Hydrologic Group

N/A

Data Story

About Soil in Los Angeles County, California

Complex Urban Soil Varieties

Comprehensive county-wide soil pH and taxonomic data are currently unavailable for this diverse urban and coastal landscape. Los Angeles likely fluctuates around the state average pH of 6.34 depending on proximity to the mountains or coast. Local testing is essential for navigating these varied micro-climates.

Varied Textures Across the Basin

Data on the specific percentages of sand, silt, and clay is limited for the broader county area. In urban settings, composition can change dramatically from one neighborhood to the next. Understanding your local mix is key to determining how quickly your yard drains after a storm.

Targeting the State Average Fertility

Specific organic matter levels for Los Angeles are not yet recorded in this dataset. For reference, California averages 3.30% organic matter and 0.141 in/in for water capacity. Urban soils often benefit from added organic material to improve growing potential.

Managing Runoff in an Urban Environment

Dominant drainage and hydrologic group data are unavailable, though paved surfaces significantly impact local hydrology. Gardeners should prioritize permeable surfaces to assist with natural groundwater recharge. Observing your property’s response to irrigation will reveal its unique drainage characteristics.

Subtropical Potential in Zone 10b

Located in USDA Hardiness Zone 10b, Los Angeles supports year-round gardening of citrus, avocados, and succulents. The mild winters allow for a vast array of exotic and native plants to flourish. Start your Mediterranean-style garden today to enjoy a perpetual harvest.

Soil Composition

Composition data not available for this county.

Soil pH

pH data not available for this county.

Soil Series

Detailed soil series data not yet available for this county.

Hydrologic Group

Hydrologic group data not available.

Drainage Class

Drainage class data not available.

Soil Profile

Dominant texture: Unknown

O HorizonOrganic layer
0-2"
A HorizonTopsoil
2-10"
B HorizonSubsoil
10-30"
C HorizonParent material
30-60"
R HorizonBedrock
60"+

Typical soil profile. Actual depths vary by location.

Frequently Asked Questions

What type of soil does Los Angeles County have?

Los Angeles County's soil is classified as Unknown. This indicates the relative proportions of sand, silt, and clay — sand percentage unavailable, silt percentage unavailable, and clay percentage unavailable. Sandy soils drain quickly but may need more frequent irrigation and fertilization.

Is Los Angeles County's soil acidic or alkaline?

pH data is not available for Los Angeles County.

What is the drainage class for Los Angeles County?

Drainage class data is not currently available for Los Angeles County.

What crops or plants grow well in Los Angeles County's soil?

Based on Los Angeles County's Unknown texture, soil pH, and drainage class, the soil is well suited for a variety of crops depending on local conditions.

What USDA soil order is found in Los Angeles County?

The dominant USDA soil order for Los Angeles County is not currently available in our dataset.

Other Counties in California

Soil data sourced from USDA SSURGO via Soil Data Access. Data is informational only and should not be used as a substitute for on-site soil testing. Contact your local NRCS office for site-specific soil information.