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Maryland · Baltimore-Washington Corridor · #208 Most Populous County in the US
Howard County, Maryland
One of the wealthiest and most educated counties in the United States - from Columbia's planned community and diverse urban village centers to Ellicott City's historic mill town on the Patapsco River and the technology corridor connecting Baltimore to Washington. Property tax, courts, public records, and senior services for Howard County residents.
Affiliate disclosure: This page contains affiliate links. We may earn a commission if you use them, at no extra cost to you. Our editorial recommendations are independent of these relationships.
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Howard County's assessment ratio means effective tax rates are low — but incorrect appraisals still cost money. Ownwell manages the appeal with no upfront cost.
Office: Howard County Office of Emergency Management (OEM) – develops and maintains all-hazards emergency management plans, manages the Emergency Operations Center, and coordinates countywide response/recovery; Director Maria Bernadzikowski (Certified Emergency Manager, Master Business Continuity Professional) joined county government as a Disaster Recovery Specialist following the devastating 2016 Ellicott City flood, later dually appointed OEM Director by the Governor and County Executive in 2023.
Sheriff: Howard County Sheriff’s Office – 9250 Judicial Way, Ellicott City, MD 21043 | (410) 313-2150 or (410) 313-4150; Sheriff Marcus Harris (in office since December 3, 2018); established in 1851; nationally CALEA-accredited; core functions include Judicial/Courthouse Security, Summons Service, Warrant Service & Fugitive Retrieval, Domestic Violence Service, Prisoner Transportation, and Landlord/Tenant Services.
Notes: For an active emergency, call 911.
Roads & Utilities
ROADS & TRANSPORTATION
Roads: MD-100 and I-95 serve Ellicott City, the county seat, in central Maryland between Baltimore and Washington.
Notes: Ellicott City has experienced repeated catastrophic flash flooding in recent years (notably 2016 and 2018), which directly shaped the county’s modern emergency management leadership and priorities.
Business & Permits
BUILDING & PERMITS
Office: Howard County Circuit Court – Ellicott City, MD.
Notes: Ellicott City is genuinely home to the Baltimore & Ohio Ellicott City Station, the oldest surviving railroad station in the United States. Built in 1830-31, it served as the terminus of the first 13 miles of commercial railroad track ever laid in America, part of the B&O Railroad – the nation’s first common-carrier railroad, founded 1827. The B&O demonstrated the first American-built steam locomotive, the “Tom Thumb,” at Ellicott’s Mills in August 1830. The station operated until 1972 and now functions as a museum managed by Howard County’s Department of Recreation & Parks.
Veterans Services
VETERANS SERVICES
Office: Howard County Veterans Affairs – confirm current contact via howardcountymd.gov.
Libraries
LIBRARIES
Howard County Library System – confirm current address/phone via hclibrary.org.
Parks & Recreation
PARKS & RECREATION
Key Assets: The Baltimore & Ohio Ellicott City Station Museum, historic downtown Ellicott City, and Patapsco Valley State Park are the county’s premier attractions.
Notes: The genuine “oldest surviving railroad station in America” status is one of the more nationally significant transportation-history facts covered anywhere in this project.
GIS & Maps
GIS & MAPS
Appraisal/Parcel Search: Howard County Department of Planning and Zoning – confirm current contact via howardcountymd.gov.
Animal Services
ANIMAL SERVICES
Howard County Animal Control & Adoption Center – 8576 Davis Road, Columbia, MD 21045 | (410) 313-2780 | Email: [email protected] | After-hours emergencies (410) 313-2929; a division of the Howard County Police Department; handles between 4,000-5,000 animals annually; investigates cruelty/neglect, accepts owner surrenders, and administers adoptions; all dogs, cats, and rabbits are spayed/neutered and vaccinated prior to adoption (24-hour minimum waiting period); hosts a monthly $5 rabies clinic. Hours: Mon/Wed/Fri 8 AM-5 PM, Tue/Thu 11 AM-7 PM, Sat 10 AM-2 PM (closes at 3 PM last Friday of the month for staff meeting).
Environmental & Waste
ENVIRONMENTAL / WASTE MANAGEMENT
Office: Howard County Department of Public Works – confirm current contact via howardcountymd.gov.
NOTES: Howard County is the second county in the third batch of the Maryland v2 A+ sourced redo. The genuine “oldest surviving railroad station in America” status is one of the more nationally significant transportation-history facts covered anywhere in this project. All contact information above was sourced via web search as of early August 2026 and should be reconfirmed directly with the relevant office before a visit, deadline-sensitive filing, or emergency-adjacent decision.
About Howard County
Howard County is Maryland’s fourth most populous county and the 208th most populous in the United States, covering 251 square miles of the Baltimore-Washington corridor. It consistently ranks among the five wealthiest large counties in the United States by median household income and among the most educated by educational attainment.
Columbia – not an incorporated city but an unincorporated planned community – is Howard County’s defining achievement and one of America’s most successful planned communities. Developer James Rouse began building Columbia in 1967 on 14,000 acres of farmland between Baltimore and Washington with an explicit vision of racial and economic integration – a radical concept in the context of late 1960s American suburbia. Columbia’s “village” structure (ten villages, each with its own center, schools, and community facilities surrounding the Town Center) has been replicated in planned communities worldwide, and its integration goals have been substantially realized: Columbia is consistently among the most racially and economically integrated large communities in Maryland. The Merriweather Post Pavilion – an outdoor amphitheater in Columbia’s Symphony Woods – is one of the most respected mid-sized music venues on the East Coast.
Ellicott City (the unincorporated county seat) is a historic mill town on the Patapsco River – one of the oldest industrial communities in America, dating to the 1770s. The Main Street commercial district features 18th and 19th-century stone buildings converted to restaurants, antique shops, and specialty retail. Ellicott City’s Main Street has suffered catastrophic flooding in 2016 and 2018 that destroyed businesses and infrastructure – flash flood events triggered by the combination of heavy rainfall and the steep, narrow Patapsco Valley creating an extraordinary flood-funnel effect.
Clarksville and Highland anchor Howard County’s western rural-to-suburban tier – large-lot residential communities with top-rated schools and high property values.
The Technology Corridor along Route 29 and US 1 connects Columbia to both Baltimore and Washington, with significant federal government contractors, biotechnology firms, and technology companies establishing operations in Howard County’s business parks.
All Services
Browse every category and topic available for this county.
Maryland’s SDAT reassesses one-third of Howard County properties annually on a three-year cycle. Properties are assessed at full cash value. The Homestead Property Tax Credit caps the annual increase in taxable assessment for owner-occupied primary residences at 5% in Howard County – register with SDAT after purchase.
The appeal process: File within 45 days of receiving your assessment notice with SDAT. If dissatisfied, appeal to the Maryland Tax Court within 30 days of the final SDAT decision.
MD estate tax: Maryland imposes an estate tax above $5 million (2025) at rates up to 16%. Maryland also has an inheritance tax of 10% on assets to collateral heirs (siblings, nieces, nephews – direct descendants and spouses exempt). Howard County’s high property values and professional incomes make estate planning particularly relevant.
OWNWELL CTA: Howard County SDAT reassessment on three-year cycle – 45-day appeal window. Columbia and Clarksville among Maryland’s strongest appreciation markets. MD estate tax above $5M; inheritance tax 10% to collateral heirs. Ownwell manages the appeal with no upfront cost.
Recommended
Howard County SDAT reassessment on three-year cycle - 45-day appeal window. Columbia and Clarksville among Maryland's strongest appreciation markets. MD estate tax above $5M; inheritance tax 10% to collateral heirs. Ownwell manages the appeal with no upfront cost.
Courts & Legal
Courts & Legal
Orphans’ Court (Probate): The Howard County Orphans’ Court and Register of Wills at 9250 Judicial Way, Ellicott City, MD 21043, phone 410-313-2111, handle wills, estate administration, and guardianships.
Circuit Court: The Howard County Circuit Court at 9250 Judicial Way handles major civil and criminal matters.
Land Records: Real property records maintained by the Howard County Circuit Court, Land Records Division. Maryland land records searchable through mdlandrec.net.
Senior Services
The Howard County Office on Aging and Independence at 9830 Patuxent Woods Drive, Columbia, MD 21046, phone 410-313-6410, serves the county’s senior population with in-home services, caregiver support, nutrition programs, transportation, and benefits counseling. Howard County General Hospital (Johns Hopkins Medicine) provides significant geriatric care.
Recommended
Assisted living, memory care, and independent living across Howard County - from Columbia and Ellicott City to Clarksville, Highland, and the Patapsco Valley communities.
Marriage & Vital Records
Marriage licenses, divorce records, and birth & death certificates are handled by the following office(s):
CIRCUIT COURT CLERK (Land Records & Court Filings)
8360 Court Ave., Ellicott City, MD 21043
(410) 313-2111
Genealogy
County-level record sources
Howard County Register of Wills (estate/probate case files – see Probate section above).
“Maryland, Index to the Wills of Howard County, 1840-1950” is a specific published resource for this county.
Local societies
No dedicated Howard County genealogical society was confirmed in available directories.
Probate & Estate
Losing someone and having to deal with courts and paperwork at the same time is hard. This section won’t make that easier, but it should tell you what to expect, what it costs, and where to go – so at least you’re not walking in blind.
Where to go
Howard County Register of Wills 9250 Judicial Way, Suite 1100, Ellicott City, MD 21043
Howard County is in central Maryland between Baltimore and Washington, D.C., seated in Ellicott City.
Step 1: figure out which path applies
Maryland is NOT a Uniform Probate Code state – it follows its own framework under the Maryland Estates and Trusts Article, administered through the Register of Wills rather than a traditional probate court in most cases.
Small Estate Administration – for a gross probate estate of $50,000 or less, or $100,000 or less if the surviving spouse is the sole heir or legatee. Filed as a Petition for Administration of a Small Estate. There is no filing fee for small estates opened on or after October 1, 2022. Small estates typically close in 2 to 4 months.
Modified Administration – available for Regular Estates when the residuary legatees consist of the personal representative and non-taxable recipients of property (spouse, children, parents, grandparents, siblings), the estate is solvent, and all consent. The personal representative must elect this within 3 months of appointment, files a verified Final Report within 10 months, and must complete final distribution within 12 months of appointment.
Regular Estate (Administrative Probate) – required when probate assets exceed $50,000 (or $100,000 with spouse as sole heir). Requires a formal Inventory (due within 3 months) and Account (first account due within 9 months, can be filed as early as 6 months), with a fee based on estate value.
Judicial Probate – conducted by the Orphans’ Court rather than administratively through the Register of Wills, required when the will’s validity is questioned, the will is damaged, or more than one qualified person petitions to serve as personal representative.
Step 2: filing for probate
File a Petition for Administration (Form 1103, plus Schedule B/Form 1137 as needed) with the Register of Wills in the county where the decedent was domiciled at death.
The Register of Wills reviews the petition and, following the statutory order of priority, appoints a personal representative and issues Letters of Administration.
Notice to creditors is published by the Register in a newspaper; creditors have 6 months from the date of death (or 2 months after being mailed notice, whichever is later) to file a claim, or they’re barred from collecting.
The personal representative pays valid debts, files the required Inventory and/or Account (or Final Report under Modified Administration), pays any inheritance tax due, and distributes the remaining assets – the surviving spouse or domestic partner is entitled to a $10,000 family allowance, and $5,000 for each unmarried minor child.
What it costs
No filing fee for small estates opened on or after October 1, 2022.
Regular estates pay a probate fee based on the total gross estate value, per a published fee schedule.
Maryland imposes both a state estate tax (threshold around $5 million) and a separate inheritance tax.
Maryland does not require an attorney for probate, but complex or contested estates commonly benefit from one.
Probate filings, estate administration, and guardianship matters are handled by the following office(s):
Public Safety & Arrests
Arrest records, inmate search, and law enforcement services are handled by the following office(s):
SHERIFF
3410 Court House Dr., Ellicott City, MD 21043
(410) 313-2150
Elections & Voting
Voter registration, polling locations, and elections information are handled by the following office(s):
ELECTIONS
3430 Court House Dr., Ellicott City, MD 21043
(410) 313-2410
Health & Human Services
Offices & Contacts
Health services, social services, and assistance programs are handled by the following office(s):
Howard County Health Dept
(410) 313-6300
Dept of Social Services
(410) 872-8700
MD Medicaid
(800) 492-5231
Howard County General Hospital
hcgh.org (Columbia — quality regional hospital; Johns Hopkins Medicine affiliate)
Public Health Information
PUBLIC HEALTH
Office: Howard County Health Department – confirm current phone via howardcountymd.gov.
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