2020 Census and Redistricting Thread: California

[President Punxsutawney Phil]

I've fixed Vargas' seat. It is now up to 54.7% Latino VAP.

Go to the sidebar on the right and where it says Voting Age select '2018 CVAP.' It is impossible to get a pure SD seat above 52% using that data, unless you tentacle, so I know you are using the wrong stuff. However, it's very easy to get over 50% purely in the county.

It is not a problem for me re: seeing the data you speak of because I enabled everything.

Here are the stats for the CD as it is currently drawn anyway.

Total Population 2018
Pop %
Total 752,093 100%
White 109,540 14.6%
Hispanic 455,702 60.6%
Black 73,138 9.7%
Asian 125,074 16.6%
Native 9,510 1.3%
Pacific 7,730 1%

Citizen VAP 2018
Pop %
Total 448,720 100%
White 93,884 20.9%
Hispanic 228,660 51%
Black 45,855 10.2%
Asian 72,098 16.1%
Native 2,313 0.5%
Pacific 2,969 0.7%

Total Population 2010
Pop %
Total 706,598 100%
White 112,251 15.9%
Hispanic 418,628 59.2%
Black 70,469 10%
Asian 114,495 16.2%
Native 10,803 1.5%
Pacific 8,300 1.2%

Voting Age Pop 2010
Pop %
Total 510,317 100%
White 97,623 19.1%
Hispanic 279,205 54.7%
Black 49,365 9.7%
Asian 85,921 16.8%
Native 7,531 1.5%
Pacific 5,414 1.1%

I'm trying to limit municipal splits anyway. I don't think the Latino % being just over a majority of CVAP matters too much esp. since the Asian and white % evenly split the non-Latino segments of the seat.

[President Punxsutawney Phil]

I also don't like La Habra being paired with Santa Ana.

It is pretty good from a "keep the Central OC seat's  Latino % firmed up" perspective. It also helps produce a better Asian Belt seat.

[President Punxsutawney Phil]

I also don't like La Habra being paired with Santa Ana.

It is pretty good from a "keep the Central OC seat's  Latino % firmed up" perspective. It also helps produce a better Asian Belt seat.

Is my Asian Belt seat fine?

It is decent. Ofc I couldn't replicate it due to my differing set of county cuts but it works well enough in your map.

[President Punxsutawney Phil]

I also don't like La Habra being paired with Santa Ana.

It is pretty good from a "keep the Central OC seat's  Latino % firmed up" perspective. It also helps produce a better Asian Belt seat.

Is my Asian Belt seat fine?

It is decent. Ofc  I couldn't replicate it due to my differing set of county cuts but it works well enough in your map.

Mine gets more of the Vietnamese vote by taking in Huntington Beach and slightly less of Fullerton. My Asian Belt seat is mostly Vietnamese. What's yours?

this is what I got.
I would have sent it into Cerritos but I already had two seats being shared between OC and LA, I didn't want another.

[President Punxsutawney Phil]

I also don't like La Habra being paired with Santa Ana.

It is pretty good from a "keep the Central OC seat's  Latino % firmed up" perspective. It also helps produce a better Asian Belt seat.

Is my Asian Belt seat fine?

It is decent. Ofc  I couldn't replicate it due to my differing set of county cuts but it works well enough in your map.

Mine gets more of the Vietnamese vote by taking in Huntington Beach and slightly less of Fullerton. My Asian Belt seat is mostly Vietnamese. What's yours?

this is what I got.

What's the largest Asian group in that district? Mine is a Vietnamese district.

I wouldn't know the largest Asian group inside the district, but I would guess still Vietnamese due to it having all of Westminster and the core of Little Saigon.

[President Punxsutawney Phil]

https://davesredistricting.org/join/9bde2f0f-d655-4548-990f-0e03bba14587
thoughts on this CA map? It is partially done.

The general regional blocs of your San Diego and Inland Empire districts are really good. However, you need to clean up along municipal lines and more natural boundaries in general. Corona and some of the San Diego lines are particularly awkward. I really, really don't like districts which connect OC to the Inland Empire or the San Gabriel Valley, so I'd prefer you reconfigure OC to get rid of your CA-42 district.

Re: municipal lines, it is very hard to actually follow municipal lines due to the specific shapes of the units I'm dealing with.
It's a shame that's the case.
Re: CA-42, it was my effort at an Asian opportunity CD. I wound up having to do San Brenardino (because you don't want to violate the natural boundary now delineating many sections of CA-8) and this wound up requiring a revamp of the areas around Fontana and Ontario as I had 300k left over. I also had leftovers from Riverside County. This necessitied the shape of my current CA-41. I then used the leftovers to make the rest-of-OC, rest-of-SB, and parts-of-SE-LA CD as Asian as possible.

I probably wasn't too successful. In practice I got a CD that basically is very similar to the old CA-39.

[President Punxsutawney Phil]

I also don't like La Habra being paired with Santa Ana.

It is pretty good from a "keep the Central OC seat's  Latino % firmed up" perspective. It also helps produce a better Asian Belt seat.

Is my Asian Belt seat fine?

It is decent. Ofc  I couldn't replicate it due to my differing set of county cuts but it works well enough in your map.

Mine gets more of the Vietnamese vote by taking in Huntington Beach and slightly less of Fullerton. My Asian Belt seat is mostly Vietnamese. What's yours?

this is what I got.

What's the largest Asian group in that district? Mine is a Vietnamese district.

I wouldn't know the largest Asian group inside the district, but I would guess still Vietnamese due to it having all of Westminster and the core of Little Saigon.

Little Saigon is mostly Garden Grove, with a small part of Westminster. Long Beach doesn't go very well with OC, except for the somewhat less liberal suburban areas near Cypress and Seal Beach (the neighborhoods near Long Beach State and along 2nd Street).

I guess you can say Long Beach being the core of the CD with the rest of far western OC in it was due to geography if nothing else.

[President Punxsutawney Phil]

https://davesredistricting.org/join/9bde2f0f-d655-4548-990f-0e03bba14587
thoughts on this CA map? It is partially done.

The general regional blocs of your San Diego and Inland Empire districts are really good. However, you need to clean up along municipal lines and more natural boundaries in general. Corona and some of the San Diego lines are particularly awkward. I really, really don't like districts which connect OC to the Inland Empire or the San Gabriel Valley, so I'd prefer you reconfigure OC to get rid of your CA-42 district.

Re: municipal lines, it is very hard to actually follow municipal lines due to the specific shapes of the units I'm dealing with.
It's a shame that's the case.
Re: CA-42, it was my effort at an Asian opportunity CD. I wound up having to do San Brenardino (because you don't want to violate the natural boundary now delineating many sections of CA-8) and this wound up requiring a revamp of the areas around Fontana and Ontario as I had 300k left over. I also had leftovers from Riverside County. This necessitied the shape of my current CA-41. I then used the leftovers to make the rest-of-OC, rest-of-SB, and parts-of-SE-LA CD as Asian as possible.

I probably wasn't too successful.

My Santa Ana district has a higher Latino VAP with West Anaheim than the one you have with La Habra. It's better to put La Habra in the Yorba Linda district or the Norwalk district (mine has it in the Yorba Linda-centered district).

But what impact would such an arrangement have on my Asian Belt CD? It'd absorb heavily white Huntingdon Beach, surely that would harm an Asian candidate's chances of winning and make it plurality White...

[President Punxsutawney Phil]

How should the other Asian seat in LA county go? The one centered on Arcadia and Monterey Park.

[President Punxsutawney Phil]

this is what I have with SoCal. The Santa Clarita seat ends at the LA County border; the Santa Barbara CD is exclusively contained in Santa Barbara and Ventura counties; and the rural SB seat extends north to take in Mono and Inyo.

[President Punxsutawney Phil]

this is what I have with SoCal. The Santa Clarita seat ends at the LA County border; the Santa Barbara CD is exclusively contained in Santa Barbara and Ventura counties; and the rural SB seat extends north to take in Mono and Inyo.

Do you mind zooming in a bit, turning on district borders, and turning off municipal borders? It's a bit hard to read this.

zooming in over which specific area? I'm just going to assume LA County+western OC+western Riverside+western SB+eastern Ventura.

[President Punxsutawney Phil]

here is a closeup.

[President Punxsutawney Phil]

here is a closeup.

Where was your starting point on your map? We need to fix Orange County.

I think separating San Pedro from Long Beach in favor of Huntington Beach is a non-starter. One of the biggest mistakes on the current map was CA-47.

My starting point was the Imperial-E Riverside county CD, followed by San Diego.

[President Punxsutawney Phil]

Redid some districts in LA county and OC.
I sought to compensate for the destruction of the dedicated Asian Belt seat by doing advantageous boundaries for Asians in CA-42 (now without heavily Hispanic La Habra), and by adding Cerritos in, even if that means a third cross OC-LA county district.

CA-38:
contains Cerritos and Westminster
Total Population 2018
Pop %
Total 751,225 100%
White 272,067 36.2%
Hispanic 197,023 26.2%
Black 23,521 3.1%
Asian 255,824 34.1%
Native 9,956 1.3%
Pacific 7,584 1%

CA-42:
contains Fullerton and Diamond Bar
Total Population 2018
Pop %
Total 753,120 100%
White 231,156 30.7%
Hispanic 254,586 33.8%
Black 28,815 3.8%
Asian 240,090 31.9%
Native 11,137 1.5%
Pacific 4,291 0.6%

[President Punxsutawney Phil]

https://davesredistricting.org/join/9bde2f0f-d655-4548-990f-0e03bba14587
so I've drawn districts for the rest of the map. I figured better to do that first rather than see if/which further fixes might be done in LA.
for those who might worry: the successors to current CA-21 and CA-16 are still fundamentally the same in partisanship and are very similiar in Latino %. Though my CA-21 is more Bakersfield-heavy and my CA-20 (successor to old CA-16) is more Fresno-heavy.

[President Punxsutawney Phil]

[President Punxsutawney Phil]

I did an edit of 2 Central Valley CDs designed to increase the Latino % in CA-20. It is now up to 65% Latino in 2018 total population.
No territory switched hands between any CDs other than CD-20 and CD-18.

[President Punxsutawney Phil]

When people do the pairing of Imperial and Riverside, everyone should try for something like this. Yes, the Hemet region gets traumatized like I hinted at earlier, however I suspect this is happens no matter what. The group is a 'jack of all trades, master of none' when it comes to the present CA41/42/36, and fits well in none of them. You grab San Jacinto, Valle Vista, And Banning, but not Beaumont. Such a seat is 59% hispanic and 46.5% Hispanic to 44.5% White VAP. Is this performing...well it's close but probably not. The seats main Hispanic base is Imperial after all, and turnout rates there are abysmal like the other rural Hispanic border counties to California's east. However, it is made safe Dem and does presently elect a Hispanic rep, so some might consider it good enough to be considered an New HVAP seat for the time being.

And yes, before people ask, everything is connected by roads despite the mountains. I74 connects Palm Springs and Valley Vista, and then Soboda road connects Valle Vista and San Jacinto. I need to state this since the two towns do not touch thanks to Hemet.

So it seems the main difference between your Riverside-Imperial CD and mine is that mine relies more on natural boundaries?

[President Punxsutawney Phil]

re: changing seats in LA, one thing that worries me is that it'll risk erase a performing Latino CD I have on the map already. For instance the inclusion of East Los Angeles is important for CD-29 being as Latino as it is. Without East Los Angeles the CVAP plunges from 52% to 46%. And this is despite it being just 1/7 or so of the seat.
I also worry about the Asian seats. My CA-42 is tailor-made to be as Asian as possible and ought to be preserved as an Asian opportunity seat.

[President Punxsutawney Phil]

re: changing seats in LA, one thing that worries me is that it'll risk erase a performing Latino CD I have on the map already. For instance the inclusion of East Los Angeles is important for CD-29 being as Latino as it is. Without East Los Angeles the CVAP plunges from 52% to 46%. And this is despite it being just 1/7 or so of the seat.
I also worry about the Asian seats. My CA-42 is tailor-made to be as Asian as possible and ought to be preserved as an Asian opportunity seat.

I have 3 plurality-Asian seats (CA-11: Ro Khanna, CA-30: Judy Chu, and CA-44: the Garden Grove-Huntington Beach seat). What's your CA-42?

Total Population 2018
Pop %
Total 753,120 100%
White 231,156 30.7%
Hispanic 254,586 33.8%
Black 28,815 3.8%
Asian 240,090 31.9%
Native 11,137 1.5%
Pacific 4,291 0.6%

Citizen VAP 2018
Pop %
Total 501,284 100%
White 191,817 38.3%
Hispanic 139,411 27.8%
Black 19,048 3.8%
Asian 143,413 28.6%
Native 4,724 0.9%
Pacific 1,289 0.3%
this is my CA-42's stats (Fullerton, Diamond Bar, etc). It is unchanged since I last posted the OC seats.

[President Punxsutawney Phil]

re: changing seats in LA, one thing that worries me is that it'll risk erase a performing Latino CD I have on the map already. For instance the inclusion of East Los Angeles is important for CD-29 being as Latino as it is. Without East Los Angeles the CVAP plunges from 52% to 46%. And this is despite it being just 1/7 or so of the seat.
I also worry about the Asian seats. My CA-42 is tailor-made to be as Asian as possible and ought to be preserved as an Asian opportunity seat.

I have 3 plurality-Asian seats (CA-11: Ro Khanna, CA-30: Judy Chu, and CA-44: the Garden Grove-Huntington Beach seat). What's your CA-42?

Total Population 2018
Pop %
Total 753,120 100%
White 231,156 30.7%
Hispanic 254,586 33.8%
Black 28,815 3.8%
Asian 240,090 31.9%
Native 11,137 1.5%
Pacific 4,291 0.6%

Citizen VAP 2018
Pop %
Total 501,284 100%
White 191,817 38.3%
Hispanic 139,411 27.8%
Black 19,048 3.8%
Asian 143,413 28.6%
Native 4,724 0.9%
Pacific 1,289 0.3%
this is my CA-42's stats (Fullerton, Diamond Bar, etc). It is unchanged since I last posted the OC seats.

Did you keep the AA seat in LA County? I did on my map.

CA-36 (Arcadia, Monterey Park, Alhambra)

Total Population 2018
Pop %
Total 751,819 100%
White 127,366 16.9%
Hispanic 281,663 37.5%
Black 20,187 2.7%
Asian 323,546 43%
Native 10,296 1.4%
Pacific 4,020 0.5%

Citizen VAP 2018
Pop %
Total 476,839 100%
White 107,700 22.6%
Hispanic 155,930 32.7%
Black 13,508 2.8%
Asian 194,305 40.7%
Native 2,459 0.5%
Pacific 1,478 0.3%

Since Latino turnout is below-average the Asian hold on this seat would never be seriously threatened.

[President Punxsutawney Phil]

I redid some LA county seats. 7 of 16 seats in LA County changed in some form.
Turns out giving Pico Rivera to the 34th in return for most of Downey going to 30th worked out well.
The 29th is now wholely within LA city.
The 25th, 26th, and 28th all traded territory. The 26th gained all of the area around Beverly Hills, pushing the 28th west into parts of Van Nuys and North Hollywood, which in turn drove the 26th into areas just south of Northridge.
I also cleaned up the border between the 34th and the 35th to resemble a straight line, though the 34th will always have somewhat-incompact lines as long as the 42nd is the way it is.

The 30th remains the most Latino district on the map and in LA county.
Here are its stats:

Total Population 2018
Pop %
Total 752,106 100%
White 23,983 3.2%
Hispanic 684,462 91%
Black 34,604 4.6%
Asian 12,720 1.7%
Native 7,921 1.1%
Pacific 1,436 0.2%

Citizen VAP 2018
Pop %
Total 340,315 100%
White 19,442 5.7%
Hispanic 288,769 84.9%
Black 23,203 6.8%
Asian 7,204 2.1%
Native 1,063 0.3%
Pacific 433 0.1%

[President Punxsutawney Phil]

your Central Valley looks very similar to mine.

[President Punxsutawney Phil]

It is quite funny how me, Oryx, and ERM all ended up with fairly similar CA maps.

[President Punxsutawney Phil]

Would you say that, if CA stands pat at 53, that the rural areas in the state still effectively lost half a CD?