Caroline County GIS Maps

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Caroline County, Maryland, has 33,293 residents across 16,700 parcels and covers 319.4 square miles. The population grew 0.7% between the 2010 and 2020 census. More residents moved in than left over that decade. The FIPS code for Caroline County is 24011.

Denton is the county's largest population center. Caroline County also includes 8 zip codes, 1 public school district and 22 municipalities. Those boundaries help explain why population, schools, and housing can look different from one part of the county to another. The map below shows how those county lines, zip codes, and school districts fit together, and the sections that follow use that same geography to show parcel data, population, demographics, school enrollment and housing patterns in more detail.

Open the Interactive Parcel Viewer Open the Interactive Parcel Viewer

Maps, GIS layers, Parcels and sample data. Paid packages add full layers, analytics and database files.

Caroline County Trends

Population
33,293▴
Median Home Value
$272,400▴
K-12 Enrollment
5,648▾
Caroline County in Maryland

County analytics dashboards with historical trends & projections included in package downloads.

Caroline County Maps

The maps below show a few of the county map styles included in our downloads. County packages include map exports in JPEG, PNG, SVG, PDF and GeoTIFF formats plus more than 20 GIS layers for mapping, research and analysis. Available layers include zip codes, area codes, subdivisions, school districts, political boundaries, roads, water features, points of interest and more.

County packages also include historical county demographics, business intelligence, analytical dashboards, AI-ready prompts, markdown files and related reference data. Everything is organized to save hours of manual work collecting current data, cleaning it and joining it together. That makes it easier to move faster on analytics, due diligence, business planning and location research. Paid packages are built for commercial use, but some package contents include source-specific attribution or notice guidance. Review Licensing & Data Source Notices.

Caroline County Parcels

Caroline County has 16,702 mapped parcels covering 200,695 acres. The median assessed value is $228,400. The median lot size is 1.15 acres. 2,913 parcels are 10 acres or larger. Residential accounts for 71.6% of parcels. Agricultural follows at 15.9% and commercial at 4.0%. Of the parcels with a recorded build year, half were built in 1979 or earlier. The records carry 12,985 distinct owner names. About 7% of parcels list an owner mailing address outside Maryland. Owner names, mailing addresses, assessed values and lot sizes are on nearly every parcel. Site addresses reach 85.4%. Browse the interactive Caroline County Parcel viewer here.

Caroline County Parcel Data Coverage

Field Parcels Coverage
Parcel ID 16,700 100%
Owner name 16,681 99.9%
Owner mailing address 16,604 99.4%
Site address 14,263 85.4%
Land use code 16,681 99.9%
Land use description 16,681 99.9%
Assessed value 16,626 99.6%
Land value 16,626 99.6%
Improvement value 13,116 78.5%
Acreage 16,700 100%
Parcel boundary 16,700 100%
Download all Caroline County parcels.

Field coverage measured across all Caroline County parcel records.

Caroline County Population

Caroline County had 33,293 residents in 2020. That was 0.7% higher than in 2010. Caroline County added 3,521 people between 2000 and 2020, which points to steady long-term growth. The county is fairly spread out, with about 104 people per square mile. Some of the county's most populated postal areas include Denton, Federalsburg and Preston.

Population Trend in Caroline County MD

Caroline County Population per 2000, 2010 and 2020 census counts with a baseline 2030 projection.

Caroline County Zip Codes

Caroline County has 8 zip codes. Some of the county's most populated zip codes include Denton (21629), Federalsburg (21632) and Preston (21655). Denton is the largest zip by population, with about 9,911 residents or 30% of the county total. Together, the three largest zips account for about 64% of all county residents based on 2020 population estimates.

Most Populated Zip Codes in Caroline County MD

ZIP Area Population Trend
21629 Denton 9,911 ▴ 3.7%
21632 Federalsburg 6,616 ▴ 4.1%
21655 Preston 4,798 ▾ -4.2%
21639 Greensboro 4,354 ▾ -1.2%
21660 Ridgely 3,927 ▾ -3.3%
Download all zip code data

Caroline County Zip Code populations and trends per most recent census data.

Caroline County Demographics

Caroline County has a median age of 39.8, which is close to the Maryland average. About 23.7% of residents are under 18, while 17.1% are 65 or older. That gives the county a fairly even mix of younger families and older adults. The largest age group is 25 to 44 at about 29.9% of the population, which points to a solid working-age base. About 17.6% of adults have a bachelor's degree or higher, above the statewide figure of 42.7%. The county is majority White by population, with Hispanic, Asian, Black and multiracial residents making up a meaningful share of the local mix.

Key Demographics for Caroline County MD

Median Age

39.8

Under 18

23.7%

Age 65+

17.1%

Bachelor's+

17.6%

Caroline County School Districts

Caroline County is served by 1 public school district with 5,648 students enrolled in 2024. Several larger districts account for a substantial share of students across the county map area. Those three districts account for about 100% of public school enrollment in the map area. Total enrollment has stayed fairly steady in recent years, based on district totals from 2017 to 2024.

Largest School Districts by Enrollment in Caroline County MD

District Enrollment Share Trend
Caroline County Public Schools 5,648 100% ▾ -0.5%
Download all school district data

Caroline County school district enrollment and trends per most recent NCES reporting data.

Caroline County Housing & Real Estate

Caroline County has a median home value of $272,400 and a median gross rent of $1,070. About 72% of occupied homes in the county are owner-occupied, so the local housing market leans heavily toward ownership. Home values run below the Maryland median, while rents come in below the state average. In March 2026, the median listing price was $352,000 and homes spent about 65 days on the market.

Caroline County Housing Mix

Caroline County housing mix: owner, renter and vacant units.

Caroline County Housing Trends

Caroline County median home value and rent trend (last 5 years).

Businesses in Caroline County, MD

Caroline County has 1,257 business listings across 364 categories. The largest categories in Caroline County business listings are Churches & Religious Organizations (73, 5.8%), Farm (35, 2.8%), and Contractors (34, 2.7%). The full Caroline County business listings dataset includes names, categories, addresses and contact details where available. Caroline County packages also include U.S. Census County Business Patterns data with establishment counts, employment and payroll by industry sector.

Top Business Categories in Caroline County, MD

Category Businesses Share
Churches & Religious Organizations 73 5.8%
Farm 35 2.8%
Contractors 34 2.7%
Parks & Recreation 30 2.4%
Community & Nonprofits 24 1.9%
Post Offices 21 1.7%
Banks & Credit Unions 19 1.5%
Auto Repair 18 1.4%
ATMs 16 1.3%
Propane Supplier 14 1.1%

Caroline County Business Listings

Business Category City
Riverhouse Oasis Accommodation Greensboro
Accounting Strategies Group Accountant Preston
Choptank Marina Active Life Preston
Golden Dragonfly Acupuncture and Oriental Medicine LLC Acupuncture Denton
Bartley Collection Advertising Agency Denton
Southern States - Preston Agronomy Center Agricultural Service Preston
Campbells Lane Farm Agriculture Preston
Spiering Airport Airport Greensboro
Nuttle Builders Inc Altering And Remodeling Contractor Denton
Caroline County Department of Emergency Services Ambulance And Ems Services Denton
Download Caroline County business listings

Caroline County business listings sourced from Overture Maps. Includes locations with a high level of confidence.

Caroline County Basemaps

Caroline County map and data packages include a set of useful basemaps to help you get started quickly. These include a custom light grey canvas, USGS topo, imagery and other reference layers that make it easier to build clear, meaningful county maps using the included GIS layers, your own data or both. Pre-rendered map tiles for the light grey basemap are included so you can use them offline or host them on your own CDN.

Get the Full Caroline County Data Package

This page shows a preview of what's included in the Caroline County data package. The full package gives you a ready-to-use county data system with GIS layers, historical data, maps, database files and planning tools that save hours of manual data gathering, cleanup and joins. Everything is organized to help you skip data wrangling and start analysis faster.

  • 20+ GIS layers for parcels, zip codes, school districts, roads, water, boundaries and more
  • Historical county demographics, housing, income and trend data
  • ZIP code population files and school district enrollment history
  • Database files, markdowns, AI-ready prompts and documentation
  • Map exports in PNG, JPEG, PDF, SVG and GeoTIFF formats
  • Offline-ready data explorer, map and analytics tools

Paid packages support commercial use, client work, and derived outputs. Some package contents may include source-specific attribution or provider notices. See Licensing & Data Source Notices.

Get the Caroline County Package + Parcels — $49

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Preview a Live Package Demo

See exactly what is included in a county data package. Inspect how files are organized, the interactive data explorer and how maps and analytics are laid out. The demo loads a real sample package from Maryland — explore the full structure before you buy.

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