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Iowa Internet Speeds by County (2024)

Measured internet performance across all 83 counties in Iowa with enough speed tests to report. The state median download in 2024 was 76.0 Mbps, against a US median of 85.2 Mbps.

Counties covered

Fastest county

Des Moines

Fastest median

111.1 Mbps

Slowest median

20.6 Mbps

Every county ranked by measured download speed

#	County	Down	Up	ms	Tests
1	Des Moines	111.1	35.9	26.8	1,932
2	Dickinson	106.6	25.8	42.0	1,021
3	Lee	103.8	22.7	27.3	1,570
4	Franklin	103.0	92.6	24.9	479
5	Winnebago	102.8	64.9	25.6	588
6	Page	100.6	61.9	24.0	586
7	Montgomery	99.0	26.1	24.4	952
8	Marshall	98.3	26.2	22.8	1,622
9	Pottawattamie	96.0	14.5	25.4	5,806
10	Carroll	93.5	41.0	23.8	1,005
11	Woodbury	93.5	21.3	61.3	5,840
12	Mills	92.3	30.0	24.1	506
13	Wapello	91.9	25.7	25.9	1,478
14	Black Hawk	91.1	29.6	29.3	6,671
15	Scott	90.2	31.4	21.1	11,580
16	Johnson	89.6	30.0	23.6	11,850
17	Jackson	88.7	36.2	24.6	627
18	Cerro Gordo	88.6	30.1	25.2	2,125
19	Clay	88.3	52.6	33.1	605
20	Cedar	87.1	51.7	23.2	562
21	Greene	86.8	10.4	21.4	325
22	Washington	86.7	44.0	25.4	895
23	Story	85.3	45.8	24.0	7,668
24	Clarke	85.1	16.7	23.2	956
25	Emmet	85.0	17.2	28.4	689
26	Calhoun	82.6	19.5	23.6	371
27	Madison	82.0	16.7	24.9	900
28	Linn	81.6	18.6	23.5	17,905
29	Dallas	81.3	28.3	23.9	7,175
30	Buchanan	81.2	22.7	25.9	689
31	Clinton	79.2	24.0	11.2	2,792
32	Floyd	78.8	16.6	30.1	855
33	Jones	78.7	51.2	22.0	821
34	Webster	77.6	20.3	25.0	1,754
35	Muscatine	77.2	52.1	24.3	1,662
36	Allamakee	77.1	16.5	33.8	427
37	Benton	75.4	40.4	22.9	1,055
38	Monroe	73.4	15.6	27.1	410
39	Wayne	73.2	35.0	24.3	351
40	Crawford	71.1	19.9	24.0	473
41	Lyon	70.2	9.3	31.8	473
42	Polk	69.4	19.2	26.1	64,576
43	Mahaska	69.2	39.2	24.0	1,139
44	Warren	68.2	18.3	27.2	2,078
45	Hamilton	67.9	12.3	23.3	576
46	Iowa	67.8	16.7	28.3	685
47	Buena Vista	67.7	13.6	29.4	1,205
48	Bremer	67.5	33.6	27.3	1,025
49	Cass	67.4	18.9	23.8	668
50	Delaware	67.3	14.2	25.5	535
51	Dubuque	67.1	25.1	27.1	5,390
52	Fayette	66.8	17.2	29.9	436
53	Union	66.8	21.7	27.0	463
54	Jefferson	65.2	26.1	28.1	1,848
55	Winneshiek	64.5	12.3	25.3	893
56	Kossuth	63.8	5.3	34.6	576
57	Sioux	63.7	11.0	29.6	1,602
58	Hardin	63.1	22.3	27.0	600
59	Butler	63.0	26.7	28.3	589
60	Guthrie	61.1	49.0	21.0	305
61	Boone	61.0	25.4	22.4	1,182
62	Marion	58.4	15.5	31.9	2,386
63	Plymouth	56.9	10.7	30.1	1,417
64	Poweshiek	56.9	23.3	25.8	991
65	Jasper	55.8	19.2	29.4	3,177
66	Henry	53.0	12.0	29.9	903
67	Cherokee	52.5	21.7	31.4	497
68	Audubon	51.3	10.7	25	380
69	Shelby	50.1	32.0	24.0	577
70	Hancock	49.9	40.5	21.7	404
71	Humboldt	49.2	20.9	23.5	540
72	O'Brien	49.2	12.7	32.3	542
73	Chickasaw	46.8	20.3	26.1	479
74	Wright	46.1	16.0	24.6	528
75	Tama	41.1	17.3	24.5	440
76	Appanoose	40.0	20.1	30.9	643
77	Clayton	39.7	11.8	27.8	628
78	Ida	38.8	7.2	25	430
79	Lucas	32.4	10.5	36.0	678
80	Grundy	25.7	9.6	33.1	393
81	Keokuk	24.2	4.2	34.1	304
82	Howard	23.6	4.0	36.7	425
83	Harrison	20.6	2.9	35.7	447

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