Number of Children

John Tyler had the most children with 16 (15 with his two wives).
Five presidents (Washington, Madison, Jackson, Polk, Buchanan) did not have any biological children.
On average the presidents had 4.1 children.
The most frequent number of children is two, which happened eleven times.
* includes adopted children
+ includes children outside of marriage (proven or alleged)

Rank	#	President	Children
1	10	John Tyler	16 +
2	3	Thomas Jefferson	14 +
3	9	William Henry Harrison	11 +
4	19	Rutherford B. Hayes	8
5	20	James A. Garfield	7
6	12	Zachary Taylor	6
6	22 & 24	Grover Cleveland	6 +
6	26	Theodore Roosevelt	6
6	32	Franklin D. Roosevelt	6
6	41	George H. W. Bush	6
11	2	John Adams	5
11	8	Martin Van Buren	5
11	17	Andrew Johnson	5
11	45	Donald J. Trump	5
15	6	John Quincy Adams	4
15	16	Abraham Lincoln	4
15	18	Ulysses S. Grant	4
15	23	Benjamin Harrison	4
15	38	Gerald R. Ford	4
15	39	Jimmy Carter	4
15	40	Ronald Reagan	4 *
15	46	Joe Biden	4
23	5	James Monroe	3
23	14	Franklin Pierce	3
23	21	Chester A. Arthur	3
23	27	William H. Taft	3
23	28	Woodrow Wilson	3
23	35	John F. Kennedy	3
29	1	George Washington	2 *
29	7	Andrew Jackson	2 *
29	13	Millard Fillmore	2
29	25	William McKinley	2
29	30	Calvin Coolidge	2
29	31	Herbert Hoover	2
29	34	Dwight D. Eisenhower	2
29	36	Lyndon B. Johnson	2
29	37	Richard M. Nixon	2
29	43	George W. Bush	2
29	44	Barack Obama	2
40	15	James Buchanan	1 *
40	29	Warren G. Harding	1 +
40	33	Harry S. Truman	1
40	42	Bill Clinton	1
44	4	James Madison	0
44	11	James K. Polk	0

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