Aurora, Indiana
city in Dearborn County, Indiana, United States
Aurora is a city in Dearborn County, Indiana, United States. The population was 3,479 at the 2020 census.
Geography
According to the 2010 census, Aurora has a total area of 3.087 square miles (8.00 km2), of which 2.76 square miles (7.15 km2) (or 89.41%) is land and 0.327 square miles (0.85 km2) (or 10.59%) is water.
History
Aurora was platted in 1819. It was named for Aurora, the goddess of dawn in Roman mythology. Aurora was incorporated as a town in 1822 and became a city in 1848, though some sources say 1845.
Aurora is known for its historic downtown area and the ornate Hillforest mansion built for Thomas Gaff who earned his fortune shipping goods on the Ohio River by steamboat. The mansion was designed by architect Isaiah Rogers and was completed in 1855 in the Italian Renaissance style. The design is symmetrical. Details include deep overhangs, arched windows and balconies and porches.
The public source identifies “Aurora, Indiana” as city in Dearborn County, Indiana, United States. This brief keeps that definition visible, then builds a research path around Aurora, Indiana and city.
Why this record matters
A short description can identify a subject without explaining its stakes. For “Aurora, Indiana”, the useful work is to connect “city in Dearborn County, Indiana, United States” to the records capable of establishing context and consequence.
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 Jul 19, 2026. The linked authority identifier is Q431222. VIAF identifies the subject as 143135690. The Library of Congress control number is n85188544. Authority coordinates are 39.059, -84.904. 3 of 5 selected statements include explicit references; 2 carry qualifiers and 0 use preferred rank. The first chronological checks are 2020, 2010, 1819 and 1822.
Modern boundaries and familiar names can conceal earlier jurisdictions or structures that do not align with the present site. 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 “Aurora, Indiana”, its source revision and the description used here.
- Expand the search: follow Aurora, Indiana primary sources, Aurora, Indiana archive and Aurora 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 “Aurora, Indiana”?
- Which authority defined the place, boundary or structure at the relevant date?
- Which earlier names or jurisdictions may reveal additional records?
Search terms from this dossier
This entry incorporates text from “Aurora, Indiana” 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.