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History · Ainsworth

Ainsworth dates to 1858, and 58% of its homes were built before 1940

Below: maps from 1970 on and the census since 1880.

1858founded
0on the National Register
58%homes built before 1940
3famous people
Photo: Farragutful · CC BY-SA 4.0
Quick answers

How Ainsworth began

When was Ainsworth founded?

1858

Ainsworth dates its founding to 1858 (Wikidata and Wikipedia’s history agree). The census first counted it in 1880.

First census: 318 in 18802020 census: 511168 years
Founding year: Wikidata; Wikipedia’s history section gives the same year. First post office: 1851.The full story ↓

What stands out about Ainsworth’s past

Read from the archive, the National Register and the record. The page puts what stands out first.

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Start Ainsworth’s collection

The first neighbors to add old photos shape how Ainsworth’s history is told.

Decades since 1900 with photos
00s10s20s30s40s50s60s70s80s90s
0 of 10 decades. The empty ones are waiting for someone’s album.
The story

How Ainsworth came to be

From Wikipedia’s history of Ainsworth.

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Ainsworth was laid out in 1858, and named after its founder, D. H. Ainsworth. The town was incorporated June 18, 1892.

Text from Wikipedia, licensed CC BY-SA 4.0.

From the old history books

What they wrote about Ainsworth, 1880–1909

Passages that mention Ainsworth, cut from the printed page as they were published.

northeast quarter of section 21, township 75, range 6. A gentleman writing of Ainsworth in the year 1864, just six years after the town was first located, says: ''Ainsworth is the name of the first station on the railroad east of Washington. It contains a good grain house, two stores, a steam grist…
The history of Washington County, Iowa, its cities, towns, and c., a biographical directory of its citizens ..1880 · page 574Read the page →
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northeast quarter of section 21, township 75, range 6. A gentleman writing of Ainsworth in the year 1864, just six years after the town was first located, says: ''Ainsworth is the name of the first station on the railroad east of Washington. It contains a good grain house, two stores, a steam grist mill, and several mechanics' shops. Although it is but a small town now, it is situated in a good neighborhood, and having railroad facilities may in the future rank next to Washington in importance."

Text read by machine from the scan; it may contain errors.
northeast quarter of section 21, township 75, range 6. A gentleman writing of Ainsworth in the year 1864:, just six years after the town was first located, says: “Ainsworth is the name of the first station on the railroad east of Washington. It contains a good grain house, two stores, a steam grist…
The history of Washington County, Iowa1880 · page 574Read the page →
Read the text

northeast quarter of section 21, township 75, range 6. A gentleman writing of Ainsworth in the year 1864:, just six years after the town was first located, says: “Ainsworth is the name of the first station on the railroad east of Washington. It contains a good grain house, two stores, a steam grist mill, and several mechanics’ shops. Although it is but a small town now, it is situated in a good neighborhood, and having railroad facilities may in the future rank next to Washington in importance.”

Text read by machine from the scan; it may contain errors.
Ainsworth was laid out in '58 by D. H. Ainsworth, who owned land near the present station, and had a pull with the Rock Island men. Dr. B. Parkinson once represented the county in the legislature, while living there.
History of Washington County, Iowa from the first white settlements to 1908. Also biographical sketches of some prominent citizens of the county1909 · page 168Read the page →
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Ainsworth was laid out in '58 by D. H. Ainsworth, who owned land near the present station, and had a pull with the Rock Island men. Dr. B. Parkinson once represented the county in the legislature, while living there.

Text read by machine from the scan; it may contain errors.
The town of Ainsworth constitutes an independent school district. CHURCHES. The United Brethren Church was organized in the year 1860. The original members were John Stone, Sarah Stone, Isaac Hazen, Kebecca Hazen, Elizabeth Stewart, Francis Parson, Lucinda Parson, Edward Stone, Oliver Bennett, C. H…
The history of Washington County, Iowa, its cities, towns, and c., a biographical directory of its citizens ..1880 · page 575Read the page →
Read the text

The town of Ainsworth constitutes an independent school district. CHURCHES. The United Brethren Church was organized in the year 1860. The original members were John Stone, Sarah Stone, Isaac Hazen, Kebecca Hazen, Elizabeth Stewart, Francis Parson, Lucinda Parson, Edward Stone, Oliver Bennett, C. H. Bower, and many others, about sixty in all. A frame church edifice was erected in 1864 at a cost of $900, which was dedicated, the same year by Bishop Markwood. The present membership numbers

Text read by machine from the scan; it may contain errors.

Scans and text from the Internet Archive. Books published in 1930 or earlier, which are in the public domain.

Timeline

Ainsworth, 1851 to 1970

Woven from the archive, old maps, post office records, the National Register and the people born here.

  1. 19th century
  2. 1851Post officeThe Amboy post office opens
  3. 1858
    FoundingAinsworth is established
  4. 1860Born hereWarren Stanford Stone is born here
  5. 1862Post officeThe Amboy post office closes
  6. 1862Post officeThe Ainsworth post office opens
  7. 1875Born hereF. Dickinson Letts is born here
  8. 1884Born hereWilliam F. Riley is born here
  9. 20th century
  10. 1970On the mapFirst mapped by the U.S. Geological Survey
By decade

Ainsworth, decade by decade

On the map

Ainsworth on the map, 1970 to 1984

Every edition of the U.S. Geological Survey’s map of Ainsworth. Tap a year, or press play to watch the town change.

Ainsworth on the 1970 USGS mapAinsworth on the 1984 USGS map1970Ainsworth sheet · 1:24,000

U.S. Geological Survey historical topographic maps (public domain), via Esri’s collection of the scans. The red ring marks the center of Ainsworth.

People over time

Ainsworth, census by census

010020030040050060018801900192019401960198020002020Peak: 567

Between 318 and 567 people in every census since 1880.

15 censuses, 1880–2020.

U.S. Census Bureau decennial counts, from the census table on Ainsworth’s Wikipedia page.

Famous people

3 famous people were born in Ainsworth

Writers, athletes, leaders and more, ranked by how widely they’re known.

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Places that used to be

Lost post offices

Ainsworth’s post office has been open since 1862. Another post office, Amboy, opened and closed inside today’s town.

Amboy
1851–1862
Ainsworth
1862–today
18501940today

US Post Offices dataset (Blevins & Helbock, CC0). Places and cemeteries from the USGS Geographic Names Information System (2021).

Questions about Ainsworth’s history

What year was Ainsworth founded?

In 1858, according to Wikidata and Wikipedia’s history of the town. Ainsworth’s post office opened in 1851, and the census of 1880 counted 318 people here.

Memory lane

What the archives can’t tell you, neighbors can.

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Sources

Where this page comes from

Founding dates: Wikidata, Wikipedia, the U.S. post office records of Blevins & Helbock (CC0) and the Census. Homes by year built: Census ACS 2020–24. National Register of Historic Places: National Park Service (list of May 22, 2026). Old photos, postcards and papers: Wikimedia Commons, the Library of Congress and other public archives, credited on each item’s page. Maps: U.S. Geological Survey historical topographic maps (via Esri) and Sanborn fire-insurance maps (Library of Congress). History text and census tables: Wikipedia (CC BY-SA 4.0). Places that used to be: USGS Geographic Names Information System (2021). How TownRatings grades history →

From Wikimedia Commons (4), Wikipedia, Wikidata and Wikipedia for famous people, U.S. Geological Survey historical maps, U.S. Census counts (via Wikipedia), the US Post Offices dataset (Blevins & Helbock), the USGS Geographic Names Information System and old county and town histories (Internet Archive). Archive images are copied here with their credits and licenses, shown on each photo’s page. Refreshed monthly.