I've been playing with my gpx files and thought a few of you might like to see how caches vary by county. This data is about a week old, so it is missing only a few caches.

State-wide:

Total Caches: 1236 (One cache every 24.96 square miles)

Caches by type:
Traditional Cache: 1029 (83.3%)
Multi-Cache: 91 (7.4%)
Virtual Cache: 35 (2.8%)
Letterbox Hybrid: 3 (.2%)
Event Cache: 6 (.5%)
Webcam Cache: 2 (.2%)
Unknown Cache: 65 (5.3%)
Earthcache: 5 (.4%)

Caches by container:
micro: 187 (15.1%)
small: 131 (10.6%)
regular: 796 (64.4%)
large: 9 (.7%)
other: 36 (2.9%)
virtual: 33 (2.7%)
not chosen: 44 (3.6%)

Cache Ratings:
Difficulty:
Minimum: 1
Maximum: 5
Average: 1.9
Terrain:
Minimum: 1
Maximum: 5
Average: 2.1


Androscoggin
Total Caches: 61 (One cache every 7.70 square miles)

Caches by type:
Traditional Cache: 55 (90.2%)
Multi-Cache: 1 (1.6%)
Unknown Cache: 5 (8.2%)

Caches by container:
micro: 23 (37.7%)
small: 5 (8.2%)
regular: 30 (49.2%)
other: 1 (1.6%)
not chosen: 2 (3.3%)

Cache Ratings:
Difficulty:
Minimum: 1
Maximum: 5
Average: 1.9
Terrain:
Minimum: 1
Maximum: 3.5
Average: 1.6


Aroostook
Total Caches: 98 (One cache every 68.08 square miles)

Caches by type:
Traditional Cache: 82 (83.7%)
Multi-Cache: 5 (5.1%)
Letterbox Hybrid: 1 (1%)
Event Cache: 1 (1%)
Webcam Cache: 2 (2%)
Unknown Cache: 6 (6.1%)
Earthcache: 1 (1%)

Caches by container:
micro: 10 (10.2%)
small: 31 (31.6%)
regular: 48 (49%)
large: 2 (2%)
other: 2 (2%)
not chosen: 5 (5.1%)

Cache Ratings:
Difficulty:
Minimum: 1
Maximum: 5
Average: 2.2
Terrain:
Minimum: 1
Maximum: 5
Average: 2.2


Cumberland
Total Caches: 219 (One cache every 3.81 square miles)

Caches by type:
Traditional Cache: 162 (74%)
Multi-Cache: 28 (12.8%)
Virtual Cache: 5 (2.3%)
Event Cache: 1 (.5%)
Unknown Cache: 23 (10.5%)

Caches by container:
micro: 67 (30.6%)
small: 29 (13.2%)
regular: 106 (48.4%)
large: 1 (.5%)
other: 2 (.9%)
virtual: 4 (1.8%)
not chosen: 10 (4.6%)

Cache Ratings:
Difficulty:
Minimum: 1
Maximum: 5
Average: 2
Terrain:
Minimum: 1
Maximum: 5
Average: 1.8



Franklin
Total Caches: 28 (One cache every 60.64 square miles)

Caches by type:
Traditional Cache: 22 (78.6%)
Multi-Cache: 2 (7.1%)
Virtual Cache: 2 (7.1%)
Unknown Cache: 2 (7.1%)

Caches by container:
micro: 2 (7.1%)
regular: 24 (85.7%)
other: 1 (3.6%)
not chosen: 1 (3.6%)

Cache Ratings:
Difficulty:
Minimum: 1
Maximum: 3.5
Average: 1.9
Terrain:
Minimum: 1
Maximum: 5
Average: 2.2


Hancock
Total Caches: 84 (One cache every 18.90 square miles)

Caches by type:
Traditional Cache: 67 (79.8%)
Multi-Cache: 5 (6%)
Virtual Cache: 8 (9.5%)
Letterbox Hybrid: 1 (1.2%)
Event Cache: 1 (1.2%)
Earthcache: 2 (2.4%)

Caches by container:
micro: 8 (9.5%)
small: 1 (1.2%)
regular: 59 (70.2%)
virtual: 8 (9.5%)
not chosen: 8 (9.5%)

Cache Ratings:
Difficulty:
Minimum: 1
Maximum: 3.5
Average: 1.8
Terrain:
Minimum: 1
Maximum: 5
Average: 2.2


Kennebec
Total Caches: 75 (One cache every 11.57 square miles)

Caches by type:
Traditional Cache: 68 (90.7%)
Multi-Cache: 3 (4%)
Event Cache: 1 (1.3%)
Unknown Cache: 3 (4%)

Caches by container:
micro: 11 (14.7%)
small: 6 (8%)
regular: 49 (65.3%)
other: 3 (4%)
not chosen: 6 (8%)

Cache Ratings:
Difficulty:
Minimum: 1
Maximum: 4
Average: 1.9
Terrain:
Minimum: 1
Maximum: 5
Average: 1.9


Knox
Total Caches: 24 (One cache every 15.25 square miles)

Caches by type:
Traditional Cache: 24 (100%)

Caches by container:
micro: 1 (4.2%)
small: 7 (29.2%)
regular: 14 (58.3%)
large: 1 (4.2%)
other: 1 (4.2%)

Cache Ratings:
Difficulty:
Minimum: 1
Maximum: 4
Average: 1.7
Terrain:
Minimum: 1
Maximum: 5
Average: 2.3


Lincoln
Total Caches: 40 (One cache every 11.4 square miles)

Caches by type:
Traditional Cache: 35 (87.5%)
Multi-Cache: 3 (7.5%)
Virtual Cache: 2 (5%)

Caches by container:
micro: 1 (2.5%)
small: 3 (7.5%)
regular: 32 (80%)
other: 2 (5%)
virtual: 2 (5%)

Cache Ratings:
Difficulty:
Minimum: 1
Maximum: 3.5
Average: 1.8
Terrain:
Minimum: 1
Maximum: 5
Average: 2.2


Oxford
Total Caches: 49 (One cache every 42.4 square miles)

Caches by type:
Traditional Cache: 47 (95.9%)
Multi-Cache: 1 (2%)
Virtual Cache: 1 (2%)

Caches by container:
micro: 6 (12.2%)
small: 1 (2%)
regular: 37 (75.5%)
other: 3 (6.1%)
virtual: 1 (2%)
not chosen: 1 (2%)

Cache Ratings:
Difficulty:
Minimum: 1
Maximum: 4
Average: 2
Terrain:
Minimum: 1
Maximum: 5
Average: 2.5


Penobscot
Total Caches: 123 (One cache every 27.6 square miles)

Caches by type:
Traditional Cache: 105 (85.4%)
Multi-Cache: 13 (10.6%)
Letterbox Hybrid: 1 (.8%)
Unknown Cache: 3 (2.4%)
Earthcache: 1 (.8%)

Caches by container:
micro: 18 (14.6%)
small: 11 (8.9%)
regular: 90 (73.2%)
other: 1 (.8%)
not chosen: 3 (2.4%)

Cache Ratings:
Difficulty:
Minimum: 1
Maximum: 4.5
Average: 2
Terrain:
Minimum: 1
Maximum: 5
Average: 2.1


Piscataquis
Total Caches: 82 (One cache every 48.36 square miles)

Caches by type:
Traditional Cache: 72 (87.8%)
Multi-Cache: 1 (1.2%)
Virtual Cache: 7 (8.5%)
Unknown Cache: 2 (2.4%)

Caches by container:
micro: 2 (2.4%)
small: 3 (3.7%)
regular: 59 (72%)
large: 2 (2.4%)
other: 6 (7.3%)
virtual: 8 (9.8%)
not chosen: 2 (2.4%)

Cache Ratings:
Difficulty:
Minimum: 1
Maximum: 5
Average: 1.9
Terrain:
Minimum: 1
Maximum: 5
Average: 2.3


Sagadahoc
Total Caches: 40 (One cache every 6.35 square miles)

Caches by type:
Traditional Cache: 33 (82.5%)
Multi-Cache: 3 (7.5%)
Unknown Cache: 4 (10%)

Caches by container:
micro: 4 (10%)
small: 3 (7.5%)
regular: 31 (77.5%)
other: 2 (5%)

Cache Ratings:
Difficulty:
Minimum: 1
Maximum: 5
Average: 2.2
Terrain:
Minimum: 1
Maximum: 5
Average: 2.4


Somerset
Total Caches: 80 (One cache every 49.07 square miles)

Caches by type:
Traditional Cache: 67 (83.8%)
Multi-Cache: 5 (6.2%)
Event Cache: 1 (1.2%)
Unknown Cache: 7 (8.8%)

Caches by container:
micro: 11 (13.8%)
small: 11 (13.8%)
regular: 54 (67.5%)
large: 2 (2.5%)
other: 1 (1.2%)
not chosen: 1 (1.2%)

Cache Ratings:
Difficulty:
Minimum: 1
Maximum: 3.5
Average: 1.6
Terrain:
Minimum: 1
Maximum: 5
Average: 2


Waldo
Total Caches: 57 (One cache every 12.8 square miles)

Caches by type:
Traditional Cache: 48 (84.2%)
Multi-Cache: 5 (8.8%)
Virtual Cache: 2 (3.5%)
Unknown Cache: 2 (3.5%)

Caches by container:
micro: 1 (1.8%)
small: 5 (8.8%)
regular: 44 (77.2%)
other: 2 (3.5%)
virtual: 2 (3.5%)
not chosen: 3 (5.3%)

Cache Ratings:
Difficulty:
Minimum: 1
Maximum: 5
Average: 1.9
Terrain:
Minimum: 1
Maximum: 4
Average: 2


Washington
Total Caches: 34 (One cache every 75.52 square miles)

Caches by type:
Traditional Cache: 26 (76.5%)
Multi-Cache: 5 (14.7%)
Virtual Cache: 3 (8.8%)

Caches by container:
micro: 1 (2.9%)
small: 4 (11.8%)
regular: 22 (64.7%)
other: 4 (11.8%)
virtual: 3 (8.8%)

Cache Ratings:
Difficulty:
Minimum: 1
Maximum: 4
Average: 1.9
Terrain:
Minimum: 1
Maximum: 5
Average: 1.9


York
Total Caches: 110 (One cache every 9 square miles)

Caches by type:
Traditional Cache: 92 (83.6%)
Multi-Cache: 9 (8.2%)
Virtual Cache: 1 (.9%)
Event Cache: 1 (.9%)
Unknown Cache: 7 (6.4%)

Caches by container:
micro: 19 (17.3%)
small: 9 (8.2%)
regular: 75 (68.2%)
large: 1 (.9%)
other: 5 (4.5%)
virtual: 1 (.9%)

Cache Ratings:
Difficulty:
Minimum: 1
Maximum: 5
Average: 2
Terrain:
Minimum: 1
Maximum: 5
Average: 2.1