Maryland
Buying Land in Frederick County, Maryland
County seat Frederick. Frederick County is Maryland's largest by land area, and it backs that scale with a genuinely substantial agricultural preservation program -- over 78,000 acres, including more than 8,200 acres through the state's Rural Legacy Program -- protecting farmland against the Baltimore/DC exurban growth pressure the county's own comprehensive plan explicitly manages for. There's no Chesapeake Bay Critical Area exposure here; Frederick sits inland, upstream of tidal water.
Maryland's largest county, governed by an elected executive
Frederick is Maryland's largest county by land area, at roughly 660 square miles, and operates as a charter county with a directly elected County Executive and County Council -- one of nine Maryland counties with this structure, alongside Anne Arundel, Baltimore, Cecil, Harford, Howard, Montgomery, Prince George's, and Wicomico. That charter status gives Frederick broader Express Powers Act authority than a traditional commissioner county, which shows up in the depth and specificity of the county's own growth-management and agricultural preservation programs described below.
A substantial agricultural preservation program, with specific eligibility rules
Frederick County has permanently preserved 75,046 acres of land to date, a figure that rises to 78,680 acres when Maryland Agricultural Land Preservation Foundation (MALPF) districts are included -- MALPF is the state-level easement program described in general terms on our Maryland state page. Within that total, more than 8,218 acres have been preserved specifically through the state's Rural Legacy Program, which targets larger, contiguous blocks of agricultural and forest land identified as regional preservation priorities. The county had set a goal of 100,000 acres protected by the year 2020, a target date that has since passed according to the county's own materials -- worth noting as a sign the county's preservation goals may be under revision rather than assuming the original 100,000-acre target still governs current program messaging.
For a landowner considering enrolling farmland in Frederick's preservation program (rather than simply buying already-preserved land), the eligibility rules are specific and worth knowing upfront: 75% of a property's acreage must sit within a zoning district classified as agricultural or resource conservation, and the property generally needs at least 50 contiguous acres to qualify -- though a smaller adjacent parcel (as little as 20 contiguous acres) can qualify if it's being purchased next to land the applicant already owns, and the combined total reaches 50 contiguous acres. For a buyer evaluating a specific farm parcel, the more immediately relevant question is usually whether the land ALREADY carries a recorded preservation easement, which -- as in Carroll County -- permanently forecloses non-agricultural development regardless of the underlying zoning district, so confirm easement status directly with the county's Agricultural Preservation office rather than assuming from the zoning district alone.
No Critical Area exposure -- but real exurban growth-management stakes
Frederick sits well inland on the Monocacy and upper Potomac River system, upstream of where the Potomac becomes tidal near Washington, DC -- meaning the Chesapeake Bay Critical Area overlay covered on our Maryland state page simply does not apply to land here, a genuine simplification relative to Maryland's Bay-adjacent counties. Instead, Frederick's real land-use tension comes from its position within commuting range of both Baltimore and the DC metro area: the county's own stated growth-management goal is to manage the location, scale, and timing of new growth so that it doesn't outpace the capacity of roads, utilities, and public services -- a goal that runs in direct tension with, and is part of why the county invests so heavily in, the agricultural preservation program described above. Septic and well permitting follow the statewide COMAR 26.04.02 and 26.04.04 framework, administered locally by the Frederick County Health Department.
Who to Call Before Buying Land in Frederick County
Direct WebFetch to frederickcountymd.gov was not attempted in this research pass; department names and URLs reflect WebSearch-indexed content. Confirm current staff, hours, and fees directly.
Planning & Zoning
Frederick County Division of Planning and Permitting
Zoning ordinance administration and subdivision review.
Other
Frederick County Agricultural Preservation
MALPF and Rural Legacy Program eligibility and easement participation.
Septic / Onsite Wastewater
Frederick County Health Department
Septic (COMAR 26.04.02) and well construction (COMAR 26.04.04) permitting.
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Get local guidanceSources
- Frederick County, Maryland — Wikipedia (accessed 2026-09)
- Charter Government — Frederick County, MD (accessed 2026-09)
- The Maryland Agricultural Land Preservation Foundation (MALPF) — Frederick County, MD (accessed 2026-09)
- Rural Legacy Program — Frederick County, MD (accessed 2026-09)
- Frequently Asked Questions (Ag Pres FAQs) — Frederick County, MD (accessed 2026-09)
- Agricultural Preservation — Frederick County, MD (accessed 2026-09)
Last reviewed 2026-09