Population100881 (2025 estimate)
Discover the Heart of Allen County
Allen County, OhioWelcome to Allen County, Ohio, where established communities, local character, and everyday convenience come together. From Lima, the county seat, to smaller towns and rural landscapes, visitors and future residents can explore public resources, local businesses, outdoor spaces, and community traditions. Use this guide as a practical introduction to the places, services, and stories that help define Allen County.
Allen County at a Glance
Population100881 (2025 estimate)
County SeatLima
Largest CityLima
Established1820
ZIP CodesVerify by address with USPS
Total Area404.43 sq mi
Major RoutesSee current ODOT county highway map
Area Code419, 567
Shop - Dine - Discover
Meet Local Businesses
Support the businesses that help make our communities thrive. From family-owned shops and restaurants to trusted local services, discover businesses worth visiting throughout the county.
Discover the County
Allen County
Allen County was established in 1820 and developed from Shelby County. Its name is connected to John Allen (1771/2-1813), a War of 1812 colonel. Today, its communities bring together Ohio history, working neighborhoods, local commerce, schools, parks, and civic institutions. The county's mix of town centers and surrounding landscapes gives residents a practical sense of place while offering visitors an approachable starting point for exploring the region.
Life in Allen County centers on its communities, schools, local organizations, parks, and independent businesses. Residents can use county and state services for everyday needs, while visitors can explore downtown districts, public lands, seasonal events, and regional destinations. Start in Lima, then follow local routes to discover the places and people that give the county its own Ohio identity.
What Shapes Us
Local Heritage
The story of Allen County is reflected in its historic communities, public institutions, landmarks, and traditions passed between generations.
Working Communities
Local employers, farms, shops, services, and transportation connections support daily life and link the county to the wider Ohio economy.
Community Life
Schools, libraries, parks, civic groups, and neighborhood events create opportunities for residents to connect, participate, and build lasting roots.
Many communities connected by one shared Ohio story
My Local Guide
Allen County
Our County - Our Stories
Lead Story
Summer Nights Bring Greenfield Together
Music, food, and neighbors fill the courthouse square as the county summer season gets underway.
Read the Story June 12, 2026 • 5 min read
Around Allen County
Stories from every corner of Allen County.
Summer Nights Bring Greenfield Together
Music, food, and neighbors fill the courthouse square as the county summer season gets underway.
June 12, 2026 • 5 min read
A New Season at the Lake
Boating, trails, and sunny days return to the water.
June 10, 2026 • 4 min read
Festival Weekend Returns
A favorite local celebration returns this weekend.
June 9, 2026 • 3 min read
Main Street After Dark
Shops, dining, and music bring downtown to life.
June 8, 2026 • 4 min read
Five Hidden Stops Worth The Drive
Scenic places and local favorites worth discovering.
June 7, 2026 • 5 min read
Shop - Dine - Discover
Meet Local Businesses
Support the businesses that help make our communities thrive. From family-owned shops and restaurants to trusted local services, discover businesses worth visiting throughout the county.
County Resources
Everything You Need. All in One Place.
Find trusted public agencies, services, and practical information for Allen County in one convenient place.
Government
Use these official resources to find current government information and services available to people in Allen County. Confirm locations, eligibility, hours, and service boundaries directly with the responsible agency or provider.
Schools
Use these official resources to find current schools information and services available to people in Allen County. Confirm locations, eligibility, hours, and service boundaries directly with the responsible agency or provider.
Hospitals
Use these official resources to find current hospitals information and services available to people in Allen County. Confirm locations, eligibility, hours, and service boundaries directly with the responsible agency or provider.
Public Safety
Use these official resources to find current public safety information and services available to people in Allen County. Confirm locations, eligibility, hours, and service boundaries directly with the responsible agency or provider.
Emergency Services
Use these official resources to find current emergency services information and services available to people in Allen County. Confirm locations, eligibility, hours, and service boundaries directly with the responsible agency or provider.
State Parks
Use these official resources to find current state parks information and services available to people in Allen County. Confirm locations, eligibility, hours, and service boundaries directly with the responsible agency or provider.
Trails
Use these official resources to find current trails information and services available to people in Allen County. Confirm locations, eligibility, hours, and service boundaries directly with the responsible agency or provider.
Utilities
Use these official resources to find current utilities information and services available to people in Allen County. Confirm locations, eligibility, hours, and service boundaries directly with the responsible agency or provider.
Libraries
Use these official resources to find current libraries information and services available to people in Allen County. Confirm locations, eligibility, hours, and service boundaries directly with the responsible agency or provider.
Courts
Use these official resources to find current courts information and services available to people in Allen County. Confirm locations, eligibility, hours, and service boundaries directly with the responsible agency or provider.
DMV
Use these official resources to find current dmv information and services available to people in Allen County. Confirm locations, eligibility, hours, and service boundaries directly with the responsible agency or provider.
Transportation
Use these official resources to find current transportation information and services available to people in Allen County. Confirm locations, eligibility, hours, and service boundaries directly with the responsible agency or provider.
Postal Services
Use these official resources to find current postal services information and services available to people in Allen County. Confirm locations, eligibility, hours, and service boundaries directly with the responsible agency or provider.
Veterans
Use these official resources to find current veterans information and services available to people in Allen County. Confirm locations, eligibility, hours, and service boundaries directly with the responsible agency or provider.
Employment
Use these official resources to find current employment information and services available to people in Allen County. Confirm locations, eligibility, hours, and service boundaries directly with the responsible agency or provider.
We're Here To Help.
Helpful answers for living in, visiting, and exploring Allen County.
Helpful Information
Frequently Asked Questions
Start with clear, practical answers to common questions about Allen County.
Allen County is known for the history of its communities, its local institutions, and the mix of town, suburban, or rural life found across the county. Its identity is shaped by Lima, surrounding municipalities, regional employers, public spaces, and traditions that residents maintain through civic groups, schools, businesses, and seasonal gatherings.
Allen County includes Lima and a collection of cities, villages, townships, and unincorporated places. Because municipal and mailing boundaries can differ, use the county’s official government resources and the U.S. Census geography tools when you need a complete list or must confirm whether a particular address lies inside the county.
Start with public parks, historic districts, libraries, community calendars, local shops, and seasonal events in Lima and nearby communities. Ohio’s official tourism and natural-resources directories can help you find verified destinations. Before traveling, check the destination’s own website for current hours, admission details, accessibility information, and weather-related closures.
Use Ohio Department of Natural Resources property and trail directories, then check county, city, township, and park-district websites for local options. Trail conditions, permits, parking, and seasonal hours can change. Confirm those details with the managing agency before visiting, especially when planning boating, camping, hunting, or a longer trail outing.
Use the official USPS ZIP Code Lookup for a specific street address in Allen County. ZIP Codes are postal delivery areas rather than county boundaries, so some codes may cross county lines or use the name of a nearby community. Confirming the complete address through USPS is more reliable than choosing a ZIP Code from a general county list.
Search the Ohio Department of Health and local health-system directories for licensed hospitals, emergency departments, urgent-care centers, and specialty services serving Allen County. The closest facility may be outside the county. For routine care, verify network coverage and appointments; for a life-threatening emergency, call 911 rather than relying on an online directory.
Use the Ohio Educational Directory System and the websites of local districts to identify public schools serving Allen County. District boundaries do not always follow county or postal boundaries, so families should confirm assignment with the district using the exact home address. School calendars, enrollment requirements, transportation, and open-enrollment rules can change.
Begin with the official Allen County government website or office directory to reach commissioners, the auditor, recorder, treasurer, sheriff, courts, engineer, and other departments. Confirm the office location and hours before visiting. Ohio.gov can also direct residents to state programs that work alongside county agencies.
Explore My Local Guide listings, local chambers of commerce, downtown organizations, tourism offices, and the businesses’ own websites. Verify hours, services, addresses, and booking requirements directly with each business because details can change. Shopping locally helps keep more spending connected to jobs, services, and community activity within Allen County.
Check Ohio’s official tourism resources, local visitor organizations, municipal event calendars, park agencies, museums, and attraction websites for current ideas in Allen County. Build an itinerary around confirmed hours and locations, and include nearby regional options when they fit your route. Seasonal schedules and special-event access should always be verified before departure.
Check back all the time!!! We update ALL THE TIME!
Shop - Dine - Discover
Meet Local Businesses
Support the businesses that help make our communities thrive. From family-owned shops and restaurants to trusted local services, discover businesses worth visiting throughout the county.
My Local Guide
Find Something Fun
Top Picks for Every Kind of DayExplore places, activities, food, shopping, and outdoor options across Allen County.
Kids' Fun
- Highland Playgroup
- Wonder Works Science Center
- Giggle Junction
- Little Explorers Museum
- Discovery Park
- Greenfield Splash Pad
- Storytime Corner
- Adventure Zone
- Mini Makers Studio
- County Fairgrounds
- Family Fun Center
- Junior Nature Club
Restaurants
- Olive & Oak
- The Daily Dish
- Harbor House Grill
- Sunrise Diner
- Greenfield Table
- County Line Cafe
- Brick Oven Kitchen
- Maple Street Bistro
- The Local Plate
- Hometown Barbecue
- River Bend Grill
- Harvest Kitchen
Shopping & Retail
- Market Square General Store
- Home & Hearth
- The Book Nook
- Local Threads
- Greenfield Mercantile
- County Market
- Garden Gate Goods
- Prairie Home Supply
- Cornerstone Gifts
- Main Street Finds
- Heritage Antiques
- Artisan Hall
Clothing & Boutiques
- Uptown Boutique
- Thread & Co.
- Modern Muse
- Vintage Charm
- Willow & Co.
- Prairie Rose Apparel
- Sunday Best
- County Clothiers
- Evergreen Outfitters
- The Wardrobe
- Oak & Linen
- Market Street Style
Outdoor Fun
- Riverfront Adventures
- Summit Trail Outfitters
- Lakeside Kayaks
- Trailhead Co.
- Greenfield Lake
- Prairie Ridge Trail
- County Conservation Area
- Hillsboro Sports Park
- Sunset Campground
- Oak Valley Stables
- Meadow Creek Preserve
- Scenic Route 16
Free Things To Do
- City Park
- Downtown Walking Tour
- Community Art Wall
- Farmers Market
- Courthouse Square
- Public Library Events
- Lake Overlook
- Historic Marker Trail
- Summer Concert Series
- Community Garden
- Heritage Museum Day
- Holiday Main Street Walk
Every place has a story.Find Your Next Favorite.