Chicago footnote citation is commonly used in history, humanities, religion, philosophy, art history, and some literature courses.

Instead of placing source details in parentheses, Chicago notes-bibliography style uses small superscript numbers in the text that lead to footnotes at the bottom of the page. This guide explains how Chicago footnotes work, how first and shortened notes differ, and how to cite books, articles, and websites correctly.

Quick Answer to Chicago Footnote Citation

A Chicago footnote citation uses a superscript number in the text and a matching note at the bottom of the page. The footnote gives source details, often including the author, title, publication information, and page number.

Sentence with footnote number:

Student writing often improves when feedback is given before the final draft.¹

First footnote example for a book:

  1. Rebecca Miller, Writing with Evidence in College (Boston: Beacon Academic Press, 2023), 42.

The superscript number in the sentence connects to the numbered footnote. If you cite the same source again later, you can usually use a shortened note.

Shortened footnote example:

  1. Miller, Writing with Evidence, 58.

What Is a Chicago Footnote Citation?

A Chicago footnote citation is part of the Chicago notes-bibliography system. This system uses footnotes or endnotes to cite sources in the text and often includes a bibliography at the end of the paper.

The Chicago Manual of Style is the main authority for Chicago citation rules. Students can review the official Chicago Manual of Style citation guide for examples of notes and bibliography entries for common source types.

Chicago footnotes are especially useful when a paper discusses historical documents, archival materials, books, articles, and complex sources. Footnotes let readers see source details immediately without interrupting the main argument.

How Chicago Footnotes Work

In Chicago footnote citation, you place a superscript number after the sentence or clause that uses the source. The matching footnote appears at the bottom of the same page.

Example:

The expansion of public education changed how many Americans understood citizenship.¹

Footnote:

  1. Daniel Carter, Schools and Citizenship in Modern America (New York: Northview Press, 2021), 113.

The footnote shows where the information came from. The number 1 in the text matches the number 1 in the footnote. If you cite another source next, it becomes footnote 2.

Footnotes are usually numbered consecutively throughout the paper. Do not restart numbering on each page unless your instructor or software settings require it.

First Notes vs. Shortened Notes

Chicago footnotes usually have two forms: first notes and shortened notes.

A first note gives fuller source information because it is the first time the source appears.

First note:

  1. Rebecca Miller, Writing with Evidence in College (Boston: Beacon Academic Press, 2023), 42.

A shortened note is used when the same source appears again later.

Shortened note:

  1. Miller, Writing with Evidence, 58.

Note Type

When to Use It

What It Includes

First note

First time citing a source

Full author name, title, publication details, page number

Shortened note

Later citations of the same source

Author last name, shortened title, page number

Bibliography entry

End of paper

Full source details in bibliography format

Shortened notes keep your paper from repeating long citations again and again.

Chicago Footnote Citation Format by Source Type

Source Type

First Footnote Format

Book

Author First Last, Title of Book (Place: Publisher, Year), page.

Journal article

Author First Last, “Article Title,” Journal Name volume, no. issue (Year): page.

Website

Author or Organization, “Title of Page,” Website Name, date, URL.

Edited book chapter

Author First Last, “Chapter Title,” in Book Title, ed. Editor Name (Place: Publisher, Year), page.

Newspaper article

Author First Last, “Article Title,” Newspaper Name, Month Day, Year.

The exact details depend on the source. Books need publication information. Journal articles need journal title, volume, issue, year, and page. Websites usually need author or organization, page title, website name, date, and URL.

Complete Chicago Footnote Citation Example

Here is a complete example for a book.

Source information:

  • Author: Rebecca Miller

  • Book title: Writing With Evidence in College

  • Place of publication: Boston

  • Publisher: Beacon Academic Press

  • Year: 2023

  • Page cited first: 42

  • Page cited later: 58

Sentence with first citation:

Student writing often improves when feedback is given before the final draft.¹

First footnote:

  1. Rebecca Miller, Writing with Evidence in College (Boston: Beacon Academic Press, 2023), 42.

Later sentence using the same source:

Clear examples can also help students apply feedback more effectively.²

Shortened footnote:

  1. Miller, Writing with Evidence, 58.

Bibliography entry:

Miller, Rebecca. Writing with Evidence in College. Boston: Beacon Academic Press, 2023.

This example is correct because the first footnote gives full source information, while the later footnote uses a shortened form. The bibliography entry reverses the author’s name and uses periods instead of the note’s comma-heavy format. The page numbers in the notes point readers to the exact pages used.

Chicago Footnote Citation for a Journal Article

Journal articles are common sources in history and humanities research.

Sentence:

Student activism became an important force in campus reform debates during the late twentieth century.¹

First footnote:

  1. Laura Chen, “Student Activism and Campus Reform,” Journal of American Education 18, no. 2 (2022): 47.

Shortened footnote:

  1. Chen, “Student Activism,” 52.

Bibliography entry:

Chen, Laura. “Student Activism and Campus Reform.” Journal of American Education 18, no. 2 (2022): 40–62.

In the footnote, the page number is the specific page cited. In the bibliography entry, include the full page range of the article.

Chicago Footnote Citation for a Website

Websites can be cited in Chicago footnotes, especially when they come from universities, museums, archives, government agencies, libraries, or respected organizations.

Sentence:

The Library of Congress provides historical materials that can support research on U.S. civic life.¹

First footnote:

  1. Library of Congress, “The Civil Rights Act of 1964,” accessed June 26, 2026, https://www.loc.gov/example.

Shortened footnote:

  1. Library of Congress, “Civil Rights Act.”

If the webpage has a publication or update date, include it. If no date is listed, an access date can help readers understand when you viewed the source.

Chicago Footnotes vs. Bibliography Entries

Footnotes and bibliography entries are related, but they are not formatted the same way.

Feature

Footnote

Bibliography Entry

Location

Bottom of the page

End of the paper

Author name

First name first

Last name first

Punctuation

Often uses commas

Often uses periods

Page number

Specific page cited

Full page range for articles

Purpose

Shows source for a specific claim

Lists full sources used

A common student mistake is copying the footnote exactly into the bibliography. Chicago bibliography entries need their own format.

Where to Place Chicago Footnote Numbers

A footnote number usually appears at the end of the sentence or clause it supports. In most cases, the superscript number comes after punctuation.

Correct:

The reform movement changed public debate about education.¹

Less clear:

The reform movement¹ changed public debate about education.

The second version may be acceptable in some cases, but it can make the citation harder to read. Place the footnote number where it clearly connects to the borrowed idea, quote, or paraphrase.

Common Chicago Footnote Citation Mistakes

Mistake

Correct Approach

Using parenthetical citations instead of footnotes

Use superscript numbers and footnotes for notes-bibliography style.

Repeating full notes every time

Use shortened notes after the first full citation.

Forgetting page numbers

Include the exact page cited when available.

Copying footnotes into the bibliography

Reformat bibliography entries separately.

Putting the footnote number too far from the source idea

Place the number near the sentence or clause it supports.

Using APA or MLA punctuation

Follow Chicago note punctuation and order.

Citing unreliable websites

Prefer university, archive, government, museum, or academic sources.

Tips for Checking Chicago Footnotes Before Submitting

First, confirm that your assignment requires Chicago notes-bibliography style. If your professor asks for Chicago author-date, you should use parenthetical citations instead of footnotes.

Next, check your first notes. The first time you cite a book, article, or webpage, the note should include enough information for readers to identify the source. Later notes can be shortened.

Then compare your footnotes with your bibliography. They should include the same sources, but they should not look exactly the same. Notes and bibliography entries use different author order, punctuation, and page information.

Finally, make sure each footnote number in the text has a matching note at the bottom of the page.

FAQ About Chicago Footnote Citation

What is a Chicago footnote citation?

A Chicago footnote citation is a source citation placed in a numbered note at the bottom of the page. It connects to a superscript number in the text.

Does Chicago style require footnotes?

Chicago notes-bibliography style uses footnotes or endnotes. Chicago author-date style uses parenthetical citations instead.

What does a Chicago footnote look like?

A book footnote may look like this: Rebecca Miller, Writing with Evidence in College (Boston: Beacon Academic Press, 2023), 42.

What is a shortened footnote in Chicago style?

A shortened footnote is used after the first full citation. It usually includes the author’s last name, a shortened title, and the page number.

Do Chicago footnotes need page numbers?

Yes, when you cite a specific passage, quote, or idea from a particular page. Page numbers help readers find the exact evidence.

Is a Chicago footnote the same as a bibliography entry?

No. Footnotes and bibliography entries use different formats. Footnotes cite specific claims or pages, while the bibliography lists full source information at the end.

Conclusion

Chicago footnote citation is built around a clear connection between superscript numbers in the text and numbered notes at the bottom of the page. First notes give fuller source information, while shortened notes make later citations easier to read. Before submitting your paper, check that each footnote number matches a note, page numbers are included when needed, and bibliography entries are formatted separately from footnotes.