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Blank map of Indiana by county

All 92 counties of Indiana, ready to print on Letter, Tabloid, A4 or A3, or to download as PNG and SVG. Free, no sign-up.

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Mapsfera · data US Census Bureau

Indiana on the map

Indiana has 92 counties, the 12th most of any state. The largest is Allen, with 657 sq mi of land, and the smallest is Ohio, with 86 sq mi: Allen is about 8 times bigger.

The state capital, Indianapolis, is in Marion County. The capital version marks it on the map.

Marion County is the most populous, with 992,196 people in 2025, or 14% of the state. The least populous is also Ohio, with 5,994. Since 2020, Boone has grown the fastest (+14.0%) and Miami has lost the most (−4.1%).

What each county borders

Grant borders the most counties in the state: 9 (Blackford, Delaware, Howard, Huntington, Madison, Miami, Tipton, Wabash, and Wells).

35 counties touch another state. 13 border Kentucky: Clark, Crawford, Dearborn, Floyd, Harrison, Jefferson, Ohio, Perry and 5 more. 10 border Ohio: Adams, Allen, Dearborn, DeKalb, Franklin, Jay, Randolph, Steuben and 2 more. 10 border Illinois: Benton, Gibson, Knox, Lake, Newton, Posey, Sullivan, Vermillion and 2 more. 5 border Michigan: Elkhart, LaGrange, LaPorte, St. Joseph, and Steuben.

3 counties are on the shore of the Great Lakes: Lake, LaPorte, and Porter. 56 counties are fully inland, with no coast and no border with another state or country.

Number key

Numbers follow alphabetical order, from 1 (Adams) to 92 (Whitley). Ohio and Vermillion are too small for a number on Letter or A4 but keep their number in the table; Tabloid and A3 fit more. Area is land area, without lakes or sea, and population is the Census estimate for July 1, 2025; “Borders” counts neighboring counties in the same state.

Show the whole table (92 rows)

No.	County	Land area	Population (2025)	Borders
1	Adams	339 sq mi	36,650	3
2	Allen	657 sq mi	402,329	6
3	Bartholomew	407 sq mi	85,729	6
4	Benton	406 sq mi	8,883	5
5	Blackford	165 sq mi	11,730	4
6	Boone	423 sq mi	80,689	5
7	Brown	312 sq mi	15,777	5
8	Carroll	372 sq mi	20,655	5
9	Cass	412 sq mi	37,836	6
10	Clark	372 sq mi	130,451	4
11	Clay	358 sq mi	26,410	6
12	Clinton	405 sq mi	33,322	7
13	Crawford	306 sq mi	10,509	5
14	Daviess	429 sq mi	34,209	5
15	Dearborn	305 sq mi	51,609	3
16	Decatur	373 sq mi	26,576	6
17	DeKalb	363 sq mi	44,535	3
18	Delaware	392 sq mi	113,106	6
19	Dubois	427 sq mi	44,016	8
20	Elkhart	463 sq mi	208,774	5
21	Fayette	215 sq mi	23,533	5
22	Floyd	148 sq mi	82,153	3
23	Fountain	396 sq mi	17,013	5
24	Franklin	384 sq mi	23,286	6
25	Fulton	368 sq mi	20,091	6
26	Gibson	487 sq mi	33,091	5
27	Grant	414 sq mi	66,524	9
28	Greene	542 sq mi	31,165	8
29	Hamilton	394 sq mi	387,036	6
30	Hancock	306 sq mi	90,969	6
31	Harrison	484 sq mi	40,437	3
32	Hendricks	407 sq mi	193,510	5
33	Henry	392 sq mi	49,137	7
34	Howard	293 sq mi	83,904	6
35	Huntington	383 sq mi	37,224	5
36	Jackson	510 sq mi	47,370	7
37	Jasper	560 sq mi	33,894	7
38	Jay	384 sq mi	20,118	5
39	Jefferson	361 sq mi	33,279	5
40	Jennings	377 sq mi	27,622	6
41	Johnson	320 sq mi	174,262	5
42	Knox	516 sq mi	35,652	5
43	Kosciusko	531 sq mi	80,892	6
44	LaGrange	380 sq mi	41,305	3
45	Lake	499 sq mi	504,612	3
46	LaPorte	598 sq mi	111,294	3
47	Lawrence	449 sq mi	45,568	6
48	Madison	452 sq mi	135,088	6
49	Marion	396 sq mi	992,196	7
50	Marshall	444 sq mi	46,599	5
51	Martin	336 sq mi	9,856	5
52	Miami	374 sq mi	34,487	5
53	Monroe	395 sq mi	143,345	6
54	Montgomery	505 sq mi	38,954	7
55	Morgan	404 sq mi	74,967	7
56	Newton	402 sq mi	14,188	3
57	Noble	411 sq mi	47,937	6
58	Ohio	86 sq mi	5,994	3
59	Orange	398 sq mi	19,834	5
60	Owen	385 sq mi	21,886	5
61	Parke	445 sq mi	16,642	6
62	Perry	382 sq mi	19,389	3
63	Pike	334 sq mi	12,003	5
64	Porter	418 sq mi	176,049	3
65	Posey	409 sq mi	24,988	2
66	Pulaski	434 sq mi	12,463	5
67	Putnam	481 sq mi	37,876	6
68	Randolph	452 sq mi	24,438	4
69	Ripley	446 sq mi	29,434	7
70	Rush	408 sq mi	16,767	6
71	Scott	190 sq mi	25,053	5
72	Shelby	411 sq mi	45,882	6
73	Spencer	397 sq mi	20,061	3
74	St. Joseph	458 sq mi	272,861	4
75	Starke	309 sq mi	23,425	5
76	Steuben	309 sq mi	34,799	2
77	Sullivan	447 sq mi	20,831	4
78	Switzerland	221 sq mi	10,037	3
79	Tippecanoe	499 sq mi	190,456	7
80	Tipton	261 sq mi	15,319	5
81	Union	161 sq mi	6,863	3
82	Vanderburgh	233 sq mi	181,995	3
83	Vermillion	257 sq mi	15,488	4
84	Vigo	404 sq mi	106,512	4
85	Wabash	413 sq mi	30,713	6
86	Warren	365 sq mi	8,474	4
87	Warrick	385 sq mi	66,803	5
88	Washington	514 sq mi	28,383	8
89	Wayne	402 sq mi	66,169	4
90	Wells	368 sq mi	28,883	6
91	White	505 sq mi	25,164	6
92	Whitley	336 sq mi	35,046	5

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Illinois 102 counties

Kentucky 120 counties

Ohio 88 counties

US states 50 states

Frequently asked questions

How many counties does Indiana have?

92 counties. That’s the 12th most of any state.

What is the largest county in Indiana?

Allen, with 657 sq mi of land. The smallest is Ohio, with 86 sq mi.

What is the most populous county in Indiana?

Marion County, with an estimated 992,196 people in 2025, or 14% of the state.

What county is Indianapolis in?

The state capital, Indianapolis, is in Marion County.

Can I use it in class?

Yes, it’s free. Print it, copy it and hand it out as many times as you like. If you post it on a blog or a class website, credit “Mapsfera · data US Census Bureau”.

How do I print it on US Letter paper?

Choose Letter in “Paper size” and click “Download PDF”. In the print window, pick Letter paper and 100% scale (“Actual size”). For a bigger map, choose Tabloid (11 × 17 in) or A3.

What order are the numbers in?

Alphabetical, from 1 to the last one. That makes the key easy to follow when you grade, and it’s the same key the worksheet’s answer page uses.

Sources

Boundaries: U.S. Census Bureau, Cartographic Boundary Files 2025, counties at 1:500,000 (public domain)
Land and water area: U.S. Census Bureau (TIGER/Line and 2025 Gazetteer); population: Vintage 2025 estimates (July 1, 2025)
State capital: Natural Earth, Populated Places (public domain); which counties it spans, Census places
Neighbors, coastline and borders: calculated from those boundaries (and checked against the Census county adjacency file)