Allendale, Illinois
village in Wabash Precinct, Wabash County, Illinois

Allendale is a village in Wabash Precinct, Wabash County, Illinois. The population was 458 at the 2020 census.
History
Allendale was founded in 1869, taking its name from Colonel C. M. Allen, a railroad official.
1989 tornado
On January 7, 1989, an F4 tornado leveled a good portion of the town of Allendale and injured 55 of its residents.
The tornado directly impacted Allendale's school, destroying the grade school portion, built in the 1960s. The high school portion, built in the late 1920s, withstood the storm with minimal damage, despite being condemned two years earlier due to lobbying by Mt. Carmel's District 348 in an attempt to usurp District 17. Relief funds paid to build a brand new school to be used by the elementary and middle school students of District 17. Their motto was "NEVER BACK DOWN, NEVER GIVE UP."
Geography
Allendale is located 4 miles (6.4 km) northeast of Patton and 1.75 miles (2.82 km) east-northeast of Adams Corner.
According to the 2010 census, Allendale has a total area of 0.31 square miles (0.80 km2), all land.
This brief starts where responsible research should: with the source description of “Allendale, Illinois” as village in Wabash Precinct, Wabash County, Illinois. Everything that follows is an evidence route, not borrowed authority.
Why this record matters
The subject matters to the places & architecture register because the source frames it as village in Wabash Precinct, Wabash County, Illinois. Its deeper value depends on whether names, dates, institutions and citations support that framing.
Maps, plans, fabric surveys and administrative records can establish how the site’s name, extent and function changed over time. The source revision retrieved here is dated Sep 9, 2026. The linked authority identifier is Q1832188. Authority coordinates are 38.528, -87.710. 1 of 1 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 2020, 1869, 1989 and 2010.
A single description cannot reconcile every naming convention, rebuilding phase or administrative transfer associated with a place. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
How to read it
Treat names, boundaries and functions as historically changeable. Maps, plans, inventories and administrative records can clarify what the place meant at different dates.
- Historic place names
- Jurisdictional context
- Routes into maps and plans
Contemporary maps, plans, listed-building records, estate papers and the responsible local or national archive.
Three-step research path
- Establish the record: confirm the title “Allendale, Illinois”, its source revision and the description used here.
- Expand the search: follow Allendale, Illinois primary sources, Allendale, Illinois archive and Allendale research across catalogues and specialist indexes.
- Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.
Questions for further research
- Which source most directly establishes the central claim about “Allendale, Illinois”?
- What physical evidence or contemporary plan supports the description?
- Which authority defined the place, boundary or structure at the relevant date?
Search terms from this dossier
This entry incorporates text from “Allendale, Illinois” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.