States that contain every first digit in 2dus + 2di

[NWI_Irish96]

Edited to clarify: Single-digit routes fall into the zero group.

For example, Indiana has:

US (0)6
US 12
US 20, 24, 27
US 30, 31, 33, 35, 36
US 40, 41
US 50, 52
I-64, I-65, I-69
I-70, I-74
I-80
I-90, I-94

How many other states have this?

[jmacswimmer]

I think Maryland has them all except for a 3:

US (0)1
US 11, 13, 15
US 29
- (next closest would be US 30 in Southern Pennsylvania)
US 40
US 50
I-68
I-70
I-81, I-83
I-95, I-97

[SkyPesos]

2 states that miss 1 first digit:

Ohio misses a 1x
US (0)6
[no US or I-1x]
US 20, 21, 22, 23, 24, 25, 27
US 30, 33, 35, 36
US 40, 42
US 50, 52
US 62, 68
I-70, 71, 74, 75, 76, 77
I-80
I-90

Pennsylvania misses a 5x
US (0)1, 6
US 11, 13, 15, 19
US 20, 22
US 30
US 40
[no US or I- 5x]
US 62
I-70, 76, 78, 79
I-80, 81, 83, 84, 86
I-90, 95, 99

[Dirt Roads]

I think Maryland has them all except for a 3:

Yet, right next door West Virginia has all of them except a "9":

1:  US-11, US-19
2:  US-22
3:  US-30, US-33, US-35
4:  US-40, US-48
5:  US-50, US-52
6:  US-60, I-64
7:  I-70, I-77, I-79
8:  I-81

And yes, neither Maryland nor West Virginia have "0" routes (but those aren't technically 2dI and 2dUS  ).

[hotdogPi]

Illinois. In fact, the only gap of greater than six is 80 → 88.

[GaryV]

Michigan

0 - US 2, 8
1 - US 10, 12
2 - US 23, 24
3 - US 31
4 - US 41, 45
5 - missing
6 - I-69
7 - I-75
8 - missing
9 - I-94, 96

[formulanone]

Alabama is only missing the single digits.

I-10, US 11
I-20, US 29
US 31
US 43, 45
I-59
I-65
US 72, 78
US 80, 82, 84, I-85
US 90, 98

[Takumi]

Virginia has them all.

US 1
US 11, 13, 15, 17, 19
US 21, 23, 29
US 33
US 48
US 50
US 60, I-64
I-77
I-81, I-85
I-95

[jlam]

Colorado is missing the ones, sixes, and nines.

0 - US (0)6
1 - missing
2 - US 24, I-25
3 - US 34, US 36
4 - US 40
5 - US 50
6 - missing
7 - I-70, I-76
8 - US 84, US 85, US 87
9 - missing

However, we do have US 160 and US 491. So the only family that we are missing are the ones.

[kirbykart]

Massachusetts only works on several instances of single-digit. Does this count?

US 1
US 20
US 3
MISSING-4
US 5
US 6
US 7
I-84
Several I-9X

[CoreySamson]

Texas has all first digits:

0: I-2
1: I-10
2: I-20
3: I-30
4: I-40
5: US 59
6: US 69
7: US 79
8: US 80
9: US 90

[hotdogPi]

Massachusetts only works on several instances of single-digit. Does this count?

US 1
US 20
US 3
MISSING-4
US 5
US 6
US 7
I-84
Several I-9X

US 44

[MikieTimT]

Just about guaranteed that no state in the middle of the country can make the cut.

[roadman65]

FL
US 1
FL 2
FL 3
FL 4
FL 50
FL 6
FL 7
FL 80
US 90

[NWI_Irish96]

Massachusetts only works on several instances of single-digit. Does this count?

US 1
US 20
US 3
MISSING-4
US 5
US 6
US 7
I-84
Several I-9X

FL
US 1
FL 2
FL 3
FL 4
FL 50
FL 6
FL 7
FL 80
US 90

I intended single digit routes to have an implied first digit of zero. I also excluded state highways.

[CtrlAltDel]

Illinois. In fact, the only gap of greater than six is 80 → 88.

To wit:

Code Select Expand


0 — US 6
1 — US 12, US 14
2 — US 20, I-24, US 24
3 — US 30, US 34, US 36, I-39
4 — US 40, I-41, US 41, US 45
5 — US 50, US 51, US 52, US 54, I-55, I-57
6 — US 60, US 62, I-64, US 67
7 — I-70, I-72, I-74
8 — I-80, I-88
9 — I-90, I-94


[formulanone]

Just about guaranteed that no state in the middle of the country can make the cut.

Tennessee carries quite a number of US Routes, though.

0 - nope
1 - US 11, 19
2 - US 23, 25, I-24, I-26
3 - US 31
4 - US 41, 43, 45, I-40
5 - US 51, 58, I-55
6 - US 61, 64, I-69
7 - US 70, 72, 74, 76, 78, 79, I-75
8 - I-81
9 - ...not north/east/south/west enough

[roadman65]

Florida could be only
US 19
US 23 or 27
No US 3 starting for two digits
US 41
No US 5 starting.
No US 6 starting.
I-75
No US 8 starting.
Yeah US 92 and 98.

Two consecutive only

[roadman65]

OH, if not mentioned has for zero US 6.  No one routes though, but US 21-25. Then US 30, 33, and 35. Then US 40 and 42 followed by US 50 and 52. None in 6.  I-70, 71, 74,75, 76, and 77.  Then I-80 and last I-90.

[US 89]

Florida, as the OP wanted it:

0: US 1, I-4
1: I-10, US 19, US 19
2: US 23, US 27, US 29
4: US 41
7: I-75
9: I-95, US 90, US 92, US 98

So FL is missing 3, 5, 6, and 8. Not too great.

Georgia does better, missing only 3 and 6:

0: US 1
1: US 11, I-16, US 17, US 19
2: I-20, US 23, I-24, US 25, US 27, US 29
4: US 41
5: I-59
7: I-75, US 76, US 78
8: US 80, US 82, US 84, I-85
9: I-95

[SkyPesos]

OH, if not mentioned has for zero US 6.  No one routes though, but US 21-25. Then US 30, 33, and 35. Then US 40 and 42 followed by US 50 and 52. None in 6.  I-70, 71, 74,75, 76, and 77.  Then I-80 and last I-90.

- I did Ohio already (2nd reply)
- There's US 62 and US 68 in the state.

[Takumi]

North Carolina:

US 1
US 13, 15, 17, 19
US 21, 23, 25, 29, I-26
No 3x (yet…I’m sure they’ll come up with another interstate at some point)
I-40, I-42
US 52
US 64
US 70, 74, 76; I-77
I-85 (I refuse to recognize the other interstate that fits this criterion as a 2di)
I-95

[Road Hog]

Just about guaranteed that no state in the middle of the country can make the cut.

Yep. Arkansas has no chance at 0, 1, 2, or 9.

[plain]

US 50
US 60, I-64

Also 52, 58, I-66

[CtrlAltDel]

California is missing 2, 3, 6, and 7:

0 — I-5, US 6, I-8
1 — I-10, I-15
2 —
3 —
4 — I-40
5 — US 50
6 —
7 —
8 — I-80
9 — US 95, US 97

10 — US 101 (why not?)


There's two more if you include decommissioned routes:
6 — (Former US 60, US 66)
7 — (Former US 70)