Introduced and assessed as invasive in the lower 48 states
US-RIIS assesses a species as invasive when it causes, or is likely to cause, harm there, or is at least locally abundant and harmful ecologically, economically, or to health.
Season shown in 0 of Ohio's 88 counties. Its mapped range covers 88. Explore Ohio
No result yet (0)
Within its mapped range (7)
Recorded, too few records for a result (60)
Recorded, season not shown (21)
Season shown (0)
Boundaries: U.S. Census Bureau, 2025 Cartographic Boundary Files, 1:500,000. Range: USGS Gap Analysis Project, Species Range Maps CONUS_2001 (2018). Show as a table
Counties as a table
House Sparrow by Ohio county: records and mapped range
County
Records
In mapped range
Adams County
No qualifying records yet
Yes: year-round
Allen County
Recorded, too few records for a result
Yes: year-round
Ashland County
Recorded, too few records for a result
Yes: year-round
Ashtabula County
Recorded, too few records for a result
Yes: year-round
Athens County
39 · Recorded, season not shown
Yes: year-round
Auglaize County
Recorded, too few records for a result
Yes: year-round
Belmont County
Recorded, too few records for a result
Yes: year-round
Brown County
Recorded, too few records for a result
Yes: year-round
Butler County
75 · Recorded, season not shown
Yes: year-round
Carroll County
Recorded, too few records for a result
Yes: year-round
Champaign County
Recorded, too few records for a result
Yes: year-round
Clark County
Recorded, too few records for a result
Yes: year-round
Clermont County
Recorded, too few records for a result
Yes: year-round
Clinton County
Recorded, too few records for a result
Yes: year-round
Columbiana County
Recorded, too few records for a result
Yes: year-round
Coshocton County
Recorded, too few records for a result
Yes: year-round
Crawford County
Recorded, too few records for a result
Yes: year-round
Cuyahoga County
435 · Recorded, season not shown
Yes: year-round
Darke County
Recorded, too few records for a result
Yes: year-round
Defiance County
Recorded, too few records for a result
Yes: year-round
Delaware County
54 · Recorded, season not shown
Yes: year-round
Erie County
42 · Recorded, season not shown
Yes: year-round
Fairfield County
Recorded, too few records for a result
Yes: year-round
Fayette County
Recorded, too few records for a result
Yes: year-round
Franklin County
271 · Recorded, season not shown
Yes: year-round
Fulton County
Recorded, too few records for a result
Yes: year-round
Gallia County
Recorded, too few records for a result
Yes: year-round
Geauga County
21 · Recorded, season not shown
Yes: year-round
Greene County
42 · Recorded, season not shown
Yes: year-round
Guernsey County
Recorded, too few records for a result
Yes: year-round
Hamilton County
220 · Recorded, season not shown
Yes: year-round
Hancock County
Recorded, too few records for a result
Yes: year-round
Hardin County
Recorded, too few records for a result
Yes: year-round
Harrison County
Recorded, too few records for a result
Yes: year-round
Henry County
Recorded, too few records for a result
Yes: year-round
Highland County
No qualifying records yet
Yes: year-round
Hocking County
Recorded, too few records for a result
Yes: year-round
Holmes County
Recorded, too few records for a result
Yes: year-round
Huron County
Recorded, too few records for a result
Yes: year-round
Jackson County
Recorded, too few records for a result
Yes: year-round
Jefferson County
Recorded, too few records for a result
Yes: year-round
Knox County
Recorded, too few records for a result
Yes: year-round
Lake County
44 · Recorded, season not shown
Yes: year-round
Lawrence County
Recorded, too few records for a result
Yes: year-round
Licking County
22 · Recorded, season not shown
Yes: year-round
Logan County
Recorded, too few records for a result
Yes: year-round
Lorain County
59 · Recorded, season not shown
Yes: year-round
Lucas County
73 · Recorded, season not shown
Yes: year-round
Madison County
Recorded, too few records for a result
Yes: year-round
Mahoning County
23 · Recorded, season not shown
Yes: year-round
Marion County
Recorded, too few records for a result
Yes: year-round
Medina County
Recorded, too few records for a result
Yes: year-round
Meigs County
Recorded, too few records for a result
Yes: year-round
Mercer County
Recorded, too few records for a result
Yes: year-round
Miami County
Recorded, too few records for a result
Yes: year-round
Monroe County
No qualifying records yet
Yes: year-round
Montgomery County
85 · Recorded, season not shown
Yes: year-round
Morgan County
Recorded, too few records for a result
Yes: year-round
Morrow County
Recorded, too few records for a result
Yes: year-round
Muskingum County
Recorded, too few records for a result
Yes: year-round
Noble County
No qualifying records yet
Yes: year-round
Ottawa County
Recorded, too few records for a result
Yes: year-round
Paulding County
Recorded, too few records for a result
Yes: year-round
Perry County
Recorded, too few records for a result
Yes: year-round
Pickaway County
Recorded, too few records for a result
Yes: year-round
Pike County
Recorded, too few records for a result
Yes: year-round
Portage County
39 · Recorded, season not shown
Yes: year-round
Preble County
Recorded, too few records for a result
Yes: year-round
Putnam County
No qualifying records yet
Yes: year-round
Richland County
41 · Recorded, season not shown
Yes: year-round
Ross County
Recorded, too few records for a result
Yes: year-round
Sandusky County
Recorded, too few records for a result
Yes: year-round
Scioto County
Recorded, too few records for a result
Yes: year-round
Seneca County
Recorded, too few records for a result
Yes: year-round
Shelby County
Recorded, too few records for a result
Yes: year-round
Stark County
78 · Recorded, season not shown
Yes: year-round
Summit County
282 · Recorded, season not shown
Yes: year-round
Trumbull County
Recorded, too few records for a result
Yes: year-round
Tuscarawas County
Recorded, too few records for a result
Yes: year-round
Union County
Recorded, too few records for a result
Yes: year-round
Van Wert County
No qualifying records yet
Yes: year-round
Vinton County
Recorded, too few records for a result
Yes: year-round
Warren County
28 · Recorded, season not shown
Yes: year-round
Washington County
Recorded, too few records for a result
Yes: year-round
Wayne County
Recorded, too few records for a result
Yes: year-round
Williams County
Recorded, too few records for a result
Yes: year-round
Wood County
71 · Recorded, season not shown
Yes: year-round
Wyandot County
No qualifying records yet
Yes: year-round
Season
When it is recorded
In Mahoning County
Not enough evidence
The weeks are still too uncertain to show a season. Based on 23 records in 8 of the 10 years from 2016 to 2025, above the minimum of 20 records from 5 different years.
JanFebMarAprMayJunJulAugSepOctNovDec
Show over the bars
Recording in Mahoning County · records of all species each week, 8,408 in all
Records per week from 23 records in 8 of the 10 years from 2016 to 2025. Shows when people recorded it, not a season or how common it is.
Show as a table
Records of House Sparrow in Mahoning County each week, and records of all species
Week
Records of House Sparrow
Years recorded
Records of all species
Jan 4–10
0
0
9
Jan 11–17
0
0
27
Jan 18–24
0
0
19
Jan 25–31
0
0
32
Feb 1–7
0
0
44
Feb 8–14
0
0
28
Feb 15–21
0
0
17
Feb 22–28
1
1
63
Mar 1–7
0
0
46
Mar 8–14
0
0
28
Mar 15–21
0
0
36
Mar 22–28
0
0
27
Mar 29 – Apr 4
0
0
45
Apr 5–11
0
0
77
Apr 12–18
0
0
163
Apr 19–25
0
0
108
Apr 26 – May 2
1
1
286
May 3–9
0
0
203
May 10–16
2
2
299
May 17–23
2
2
643
May 24–30
5
4
702
May 31 – Jun 6
3
2
250
Jun 7–13
1
1
226
Jun 14–20
0
0
308
Jun 21–27
0
0
249
Jun 28 – Jul 4
0
0
259
Jul 5–11
0
0
310
Jul 12–18
0
0
308
Jul 19–25
0
0
212
Jul 26 – Aug 1
2
2
310
Aug 2–8
1
1
242
Aug 9–15
0
0
315
Aug 16–22
1
1
345
Aug 23–29
0
0
247
Aug 30 – Sep 5
1
1
331
Sep 6–12
0
0
241
Sep 13–19
1
1
175
Sep 20–26
0
0
181
Sep 27 – Oct 3
0
0
169
Oct 4–10
0
0
124
Oct 11–17
1
1
87
Oct 18–24
0
0
110
Oct 25–31
0
0
50
Nov 1–7
0
0
38
Nov 8–14
0
0
31
Nov 15–21
0
0
26
Nov 22–28
0
0
18
Nov 29 – Dec 5
1
1
51
Dec 6–12
0
0
7
Dec 13–19
0
0
10
Dec 20–26
0
0
235
Dec 27 – Jan 2
0
0
41
In Ohio
Recorded all year
Recorded through most of the year, so there is no single season to show. Based on 3,348 records in 10 of the 10 years from 2016 to 2025, above the minimum of 20 records from 5 different years.
This week · Nov 8–14
JanFebMarAprMayJunJulAugSepOctNovDec
Show over the bars
Recording in Ohio · records of all species each week, 1,691,199 in all
Records per week from 3,348 records in 10 of the 10 years from 2016 to 2025. Shows when people recorded it, not a season or how common it is.
Show as a table
Records of House Sparrow in Ohio each week, and records of all species
Week
Records of House Sparrow
Years recorded
Records of all species
Jan 4–10
34
9
6,211
Jan 11–17
45
9
5,146
Jan 18–24
28
5
4,645
Jan 25–31
31
8
4,698
Feb 1–7
46
7
6,023
Feb 8–14
43
8
5,888
Feb 15–21
42
9
5,436
Feb 22–28
54
9
6,846
Mar 1–7
42
6
8,321
Mar 8–14
39
8
10,384
Mar 15–21
59
7
12,620
Mar 22–28
51
9
13,949
Mar 29 – Apr 4
45
8
19,661
Apr 5–11
74
8
26,860
Apr 12–18
110
10
39,925
Apr 19–25
106
10
41,623
Apr 26 – May 2
175
9
56,391
May 3–9
156
9
52,952
May 10–16
150
9
53,785
May 17–23
97
10
57,698
May 24–30
104
9
54,651
May 31 – Jun 6
72
9
53,099
Jun 7–13
71
6
53,700
Jun 14–20
70
9
56,625
Jun 21–27
100
9
55,361
Jun 28 – Jul 4
81
10
58,477
Jul 5–11
70
8
61,336
Jul 12–18
77
9
64,722
Jul 19–25
77
9
69,753
Jul 26 – Aug 1
66
8
59,416
Aug 2–8
68
8
59,712
Aug 9–15
52
10
55,994
Aug 16–22
67
9
54,328
Aug 23–29
32
8
51,772
Aug 30 – Sep 5
45
9
57,167
Sep 6–12
57
9
59,075
Sep 13–19
45
8
54,543
Sep 20–26
71
7
45,860
Sep 27 – Oct 3
48
9
43,180
Oct 4–10
60
8
37,841
Oct 11–17
54
7
30,824
Oct 18–24
50
9
21,156
Oct 25–31
54
8
19,021
Nov 1–7
33
8
14,172
Nov 8–14
46
9
12,621
Nov 15–21
48
9
7,965
Nov 22–28
50
8
8,136
Nov 29 – Dec 5
40
10
6,083
Dec 6–12
45
9
6,004
Dec 13–19
54
10
5,423
Dec 20–26
30
7
5,661
Dec 27 – Jan 2
84
10
8,459
What these results show
These results show when people recorded a species, not when or where it occurs. Missing weeks and low counts do not mean absence or scarcity, and counts are not abundance. Contributed records reflect where, when and what people chose to observe.
Identification
How to identify it
Telling it apart
From what Ohio’s records show. Only what the records support is shown.
From 1,855 records placed within 100 m, beside all Ohio records placed the same way. People record where they go, so this shows where records come from, not where the species lives. Land cover: USGS Annual NLCD, 2025 (opens in a new tab)
Finer identifications
Some Ohio records of this species were identified to a subspecies:
Passer domesticus domesticusNorthern House Sparrowsubspecies
Every one of these records counts toward the House Sparrow's season above.
Why some records go further than species
Many species vary from place to place. Groups of a species that look or sound a little different, and live in different areas, can be named as subspecies. Observers and experts only identify a record that far when it shows enough detail to tell them apart. Records without that detail count at the species level.
Names: Catalogue of Life.
Sources
Where these results come from
Records from iNaturalist research-grade observations and expert-identified GBIF datasets, CC0, CC BY and CC BY-NC. Sources
Seasons use the published method and its evidence thresholds. Methods
A spreadsheet (CSV) with a link to each record, on iNaturalist or GBIF. Records whose location was hidden by the observer or the source are counted but not linked.
