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Decorative drawing: a small American settlement seen from a low hill. Not a photograph of this place.

Ada, Ohio

12 topographic sheets cover this place, the earliest surveyed in 1907 and the latest in 1986. It stands in Liberty Township. It lies in ZIP code area 45810. The Survey maps it on the Ada quadrangle. 5,334 people lived here at the 2020 count. It stands 958 feet above sea level.

Ada within Hardin County

Population over time

2 figures

Ada fell from 5,952 to 5,334 between 2010 and 2020. These are the recorded population figures Wikidata holds for this place, reached through the Geographic Names Information System number this page is keyed on rather than by name, so they belong to this place and not to another of the same name. Most are census counts, but not all are: an early figure may be a founding or settlement estimate. The change column is computed, and is left blank where more than 20 years separate a figure from the one before it, because a gap that long is not a change between two counts.

YearPeople Change
20105,952
20205,334-618 (-10%)

Then and now

1907 to 1986

The same ground, surveyed 79 years apart. Drag the handle to wipe between them. Both sheets are United States Geological Survey originals; neither has been altered.

Topographic sheet of Ada, surveyed 1986
Topographic sheet of Ada, surveyed 1907

Topographic sheets covering this place

12 sheets

Matched by testing this settlement's coordinate against the published boundary of every sheet in the United States Geological Survey's historical collection. Each opens the scanned sheet at the Survey.

In the county-history sources

24,044 words on this township

The History of Hardin County, Ohio, published 1883 names this settlement in its chapter on Liberty Township. These are the passages that mention it, exactly as the scans read.

Presbyterian Church of Ada. - This is the oldest church organization in this part of the county, and is, in one sense, a mother to many of the other churches, they being formed and organized within the walls of her church edifice. This society was organized August 21, 1841, in Huntersville, by Bev. Thomas B. Clark, with the following constituent members: Isaac Mathews, Nancy Mathews, James M. Nelson, Susanna Nelson and James Hamilton, who were received upon certificates from the Kenton Church, and Thomas Irwin, John McClure, Bobert Hyndman and Jackson Mathews by examination, with Isaac Mathews and James M. Nelson chosen Elders. The society continued to hold its services at Huntersville for about fourteen years, when it was removed to the town of Ada - then called Johntown - where its services were held in the schoolhouse, but was still known as the Huntersville Church. On April 11, 18G0, at a meeting of the Findlay Presbytery, held at Mount Blanchard, it was changed to the Johnstown Church, and was thus known and recognized until, on April 22, 1868, its name was changed to the Ada Church, by which name it has since been known. On January 7, 1801, the following persons were chosen as a Building Committee, to take charge of the work of erecting a church edifice, viz., James M. Nelson, Bobert Hyndman, Thomas Irwin, John H. Mustard and

Passage source: The History of Hardin County, Ohio, published 1883.

J. A. Meeks, Mr. Edgar, John Kelly, C. K. Lehman and Z. B. Campbell, who is the present pastor, and is serving in his third year as such. The | Elders have been Isaac Mathews, James M. Nelson, Robert Hyndman, | Elihu Mathews, John W. Nelson, John Dobbins, Alexander Sanderson, | Alvin S. Nelson, Dr. I. C. McGinnis and D. G. Kemp. In February, 1883, the church was duly made an incc>rporate body, according to the laws of I Ohio. The present membership is 150. Present Trustees, D. G. Kemp, j I. C. McGinnis, A. C. Dobbins, George Epley and P. W. Ream. A union Sabbath school was early established in the schoolhouse, and was carried on for some time by non-church members. After the building of the abovementioned church, its meetings were removed frdm the schoolhouse to the church, and became a large and interesting Sabbath school. After the organization of the Methodist Episcopal Church in Ada, they established a Sabbath school, after which the union school continued for a short time and was disbanded. Then this church organized a Sabbath school of their own, which has since continued, and is now a very flourishing and interesting school, with an average attendance of about a hundred and fifty, with D. G. Kemp as Superintendent.

Passage source: The History of Hardin County, Ohio, published 1883.

The Christian Church of Ada. - This society was organized in the fall of 1866. Elder Dana Call held a meeting in the old schoolhouse and organized a society of seventeen persons, viz., H. S. Lehr, George Sutton, William Kingsburry, Samuel Dickinson, Elizabeth Sutton, Harry Sutton, Charles Sutton, Queen Sutton, Robert Morrison, Rosetta Morrison, Marshall Carman, Deborah Carman, Lydia Scott, Lucinda Cochran, Malinda Dickens, Evan Jackson and Delilah Jackson, with H, S. Lehr and George Sutton chosen Elders, and William Kingsbury and Samuel Dickinson as Deacons. About one year after the organization, the old schoolhouse was sold to the Methodist Episcopal Church and the society was left without a place for holding meetings; but subsequently the Presbyterian society kindly offered the use of their church, which was duly accepted, but after a short time, everything not working harmoniously, the society was again withi)ut a place of meeting. The use of the town hall was then obtained at a nominal rent, where the society worshiped until, in the fall of 1877, the chm'ch had erected their present frame house, into which they moved and have since worshiped. The lot upon which the church is built was purchased by A. Ream in the fail of 1868. The house was not built till 1877, and cost about $1,800. To Elder Orrin Gates belongs the honor of forming the present organization and of working up an interest by which the present j house of worship was erected. Elder O. A. Burgess dedicated the house in ; the fall of 1877. The ministers who have served the church as its pastors are as follows: Elders O. Gates, Maxwell Thurman and Z. O. Shepherd, various ; other ministers having been employed to hold revival meetings. The pres- i; ent membership is about one hundred. Present officers are: Elders, H. S.

Passage source: The History of Hardin County, Ohio, published 1883.

Machine-read from a century-old scan, so expect the errors a machine makes: misspelled names, dropped words, stray characters.

Read the whole chapter on Liberty Township - it names this place 98 more 98 times.

Specimens collected near this place

12 of 308 shown

Regional context, not property-specific evidence. Museums hold 308 specimens collected within 10 miles of Ada between 1885 and 1973: 200 Protozoa, 64 Animalia, 33 Plantae, 10 Fungi, 1 Unrecorded. 12 distinct Species records are shown. Collected by ?, A. P. Morgan, A. P. M. and others. Each is a physical object with a catalogue number, and each entry opens the museum's record. This is what was collected and kept, not a survey of what lives here - nothing can be concluded from a species being absent.

Image SpeciesYear Collected by Where, as recorded
Specimen of unnamed1942?
Specimen of Corethromyces platensis Thaxt.Corethromyces platensis Thaxt.1942?
Specimen of Lestes dryas Kirby, 1890Lestes dryas Kirby, 18901943H. PriceBlanchard Township, Haley's Pond
A photograph of the species Bovistella radicata, not of this specimenBovistella radicata (Durieu & Mont.) Pat.1885A. P. MorganPreston
A photograph of the species Gloeophyllum trabeum, not of this specimenGloeophyllum trabeum (Pers.) Murrill1886A. P. MorganPreston
A photograph of the species Craterium leucocephalum, not of this specimenCraterium leucocephalum (Pers. ex J.F.Gmel.) Ditmar, 18131888Morgan, A. P.Ohio: Preston
A photograph of the species Diderma floriforme, not of this specimenDiderma floriforme (Bull.) Pers., 17941888not recordedOhio: Preston
A photograph of the species Calonema aureum, not of this specimenCalonema aureum Morgan, 18931889Morgan, A. P.; Preston, O.
Tapesia derelicta Morgan1889A. P. MorganPreston
Metatrichia vesparia (Batsch) Nann.-Bremek. ex G.W.Martin & Alexop., 19691890Morgan, A. P.; Preston,O.
Physarum serpula Morgan, 18961892Morgan A. P.United States-- Ohio, Preston
Trichia favoginea (Batsch) Pers., 17941892Morgan, A. P.Ohio: Preston

All 308 specimens within 10 miles, at the Global Biodiversity Information Facility.

Storms near this place

35 since 1997

Regional context, not property-specific evidence. The National Weather Service names Ada in 35 storm reports between 1997 and 2025: 24 thunderstorm wind, 7 hail, 3 flood, 1 flash flood. No death or injury is recorded in these reports. Each account below is quoted exactly as the forecast office filed it, from the NOAA Storm Events Database, and each date opens the federal record of that event.

WhenEvent Place namedHarm What the report says
November 2002Thunderstorm WindAda$50,000Four outbuildings were damaged and a barn was destroyed.
July 1999Thunderstorm WindAda$50,000A television tower was blown over, a roof damaged, and trees and power poles were downed.
June 2025Thunderstorm WindAda$10,000Numerous trees were downed throughout the county, particularly near Ada.
June 2006Thunderstorm WindAda$10,000Two homes near the intersection of US Route 68 and State Route 81 sustained damage. One of the houses had its chimney blown off. The second house had roof tiles blown off of its garage. Several large tree limbs were downed.
May 2024Thunderstorm WindAda$5,000A barn roof was damaged.
June 2004Thunderstorm WindAda$5,000A semitruck was overturned and sustained minor damage. Two trees were also knocked down.
July 2000Thunderstorm WindAda$5,000Several trees were knocked down between McGuffy and Foraker. Also, .75 inch diameter hail occurred 4 miles southeast of Ada.
July 1997Thunderstorm WindAda$5,000Trees and power lines downed.
June 1997Thunderstorm WindAda$5,000Several large tree limbs downed.
July 2023Thunderstorm WindAda$4,000A few trees were downed.
June 1999Thunderstorm WindAda$4,000Several trees were knocked down.
May 2011Thunderstorm WindAda$3,000Trees and power lines were reported down due to damaging thunderstorm winds.
July 2011Thunderstorm WindAda$3,000Several trees were reported down due to damaging thunderstorm winds.
June 2004Thunderstorm WindAda$3,000A couple of trees were knocked down along State Route 235.
April 2003Thunderstorm WindAda$3,000A few trees were downed.
July 1999Thunderstorm WindAda$3,000Numerous large limbs down.
May 1998Thunderstorm WindAda$3,000Trees downed.
April 2025Thunderstorm WindAda$2,000A couple of trees were downed in Ada.
April 2023Thunderstorm WindAda$1,000A large tree was downed.
June 2020Thunderstorm WindAda$1,000A 30 inch diameter tree split about six feet from the base.
June 2012Thunderstorm WindAda$1,000Large tree branches were downed due to damaging thunderstorm winds.
May 2010Thunderstorm WindAda$1,000Trees were reported down due to damaging thunderstorm winds.
June 2007HailAda$1,000One tree was also knocked down on the Ohio Northern University campus.
July 2023Thunderstorm WindAda$250Several large branches were downed in the Ada area.
May 2020FloodAda-A few roads were closed due to high water in the Ada area.
July 2017FloodAda-High water was reported on State Route 81.
June 2015FloodAda-A street in Ada had high water over it. In addition, some basements had water in them.
July 2015Flash FloodAda-Rising water resulted in a water rescue on Lincoln Avenue and another one near the Ohio Northern University library.
June 2012Thunderstorm WindAda-The spotter estimated the speed of the wind gust.
July 2023HailAda-no account filed
July 2017HailAda-no account filed
July 2017HailAda-no account filed
May 2010HailAda-no account filed
May 2010HailAda-no account filed
June 2009HailAda-no account filed

Every storm recorded in Hardin County

Nearest settlements

The eight closest, with where each one stands in the county. Distances are straight-line, computed from the Geographic Names Information System coordinates.

Map PlaceDistance Sheets
Parkview Village North0.4 miles12
Parkview Village South0.5 miles12
Hillcrest Estates1.1 miles12
Alger4.5 miles16
Belmont Court4.6 miles16
Huntersville4.6 miles16
McGuffey5.6 miles16
Dola7.0 miles12

Elsewhere

Matched on this settlement's Geographic Names Information System number rather than its name, so it cannot be a different place of the same name in another state.

Wikipedia article on AdaAn encyclopaedic summary. Its text is share-alike, so it is linked here rather than copied.
Wikidata item Q1934356The structured record the population and elevation above come from. Public domain (CC0).

Provenance

This settlement is recorded in the Geographic Names Information System as feature 1064295. The sheet list is computed by point-in-boundary test against the United States Geological Survey's historical topographic inventory. Both are works of the United States government and carry no copyright under 17 U.S.C. 105.

Specimens. Global Biodiversity Information Facility (GBIF), https://www.gbif.org/. Only records licensed CC0 or CC BY are used. Records licensed CC BY-NC are excluded because this site carries advertising. Images are checked individually and any whose licence is non-commercial, no-derivatives or unreadable is refused.

Storms. NOAA National Centers for Environmental Information, Storm Events Database https://www.ncei.noaa.gov/stormevents/ A work of the United States government, no copyright under 17 U.S.C. 105. Narratives are quoted verbatim from the National Weather Service report and are not edited or summarised.