Public Housing demographics and FEMA National Risk Index

Introduction

Goal: To explore how demographics in public housing developments data vary with FEMA NRI indicators for heat wave, hurricane, coastal and riverine flooding, and wildfire risks.

Methods & Data

I aggregated HUD Public Housing (PH) Developments data to counties. This dataset has demographics attached to each development; I picked a few that I thought would be interesting. See the data dictionary here. 68.5% (4,315/6,299) of Public Housing developments with valid SES data included in analysis.

I then calculated the average value of the PH demographic variables in the counties in which they are located, grouping them by FEMA Risk Index ratings for heat wave, hurricane, coastal and riverine flooding, and wildfire (Very Low to Very High, excluding from the analysis those counties that do not have complete records for the PH or FEMA NRI values).

Heat wave risk

Per. Minority, Per. Black, is higher for higher heat wave risk categories
Asian, Hispanic, Overhoused, Ppl/Unit, Rent, Female Head of Household tend to increase for higher heat wave risk categories

Public Housing Demographics in Counties by Heat Wave Risk Rating (n=1636)
Heat Wave Risk	Per. Minority	Per. Black	Per. Native	Per. Asian	Per. Hispanic	Per Overhoused	Per. Elderly	Ppl/Unit	Rent/Month	Per. Fem. Head	n	Per. of Total
Very Low	29.40	11.47	3.33	0.55	14.04	12.42	34.25	1.73	394.93	69.21	104	6.36
Relatively Low	34.96	26.44	1.24	0.51	6.77	13.88	27.33	1.90	381.29	72.01	706	43.15
Relatively Moderate	45.82	35.05	1.45	0.95	8.34	13.52	25.74	1.97	386.51	72.91	446	27.26
Relatively High	60.97	34.05	1.06	2.84	22.94	12.45	27.36	2.09	460.20	73.53	72	4.40
Very High	82.45	57.49	1.66	2.28	20.61	15.34	22.20	2.09	389.19	74.27	12	0.73
No Data	48.95	13.24	2.55	1.65	31.51	19.64	23.60	2.03	363.83	73.98	296	18.09

Heat wave and SES maps

Hurricane Risk

Per. Minority, Per. Black, are generally higher for higher hurricane risk categories
Big jump from 24 to 40 % for Per. Elderly between Relatively High and Very High
Rent, Female Head of Household tend to increase for higher hurricane risk categories
Should look in detail at 9 counties in Very High category

Public Housing Demographics in Counties by Hurricane Risk Rating (n=1636)
Hurricane Risk	Per. Minority	Per. Black	Per. Native	Per. Asian	Per. Hispanic	Per Overhoused	Per. Elderly	Ppl/Unit	Rent/Month	Per. Fem. Head	n	Per. of Total
Very Low	28.71	20.27	0.95	0.43	7.06	13.88	25.43	1.92	370.08	71.89	742	45.35
Relatively Low	65.68	55.08	0.26	1.15	9.18	16.91	19.87	2.17	383.56	78.49	282	17.24
Relatively Moderate	74.05	57.22	0.25	1.51	15.03	17.35	23.22	2.17	424.15	78.21	121	7.40
Relatively High	80.52	62.77	1.61	1.75	14.35	17.51	20.35	2.24	447.33	79.94	35	2.14
Very High	76.55	66.36	0.52	0.79	8.78	11.10	25.54	2.27	440.41	78.59	9	0.55
No Data	35.23	5.06	4.14	1.49	24.52	13.73	34.31	1.74	390.26	67.54	447	27.32

Coastal Flooding

Per. Minority, Per. Hispanic are generally higher for higher coastal flooding risk categories
Ppl/Unit, Rent, Female Head of Household tend to increase for higher hurricane risk categories
Should look in detail at 2 counties in Very High category

Public Housing Demographics in Counties by Coastal Flooding Risk Rating (n=1636)
Coastal Flooding Risk	Per. Minority	Per. Black	Per. Native	Per. Asian	Per. Hispanic	Per Overhoused	Per. Elderly	Ppl/Unit	Rent/Month	Per. Fem. Head	n	Per. of Total
Very Low	56.19	41.64	3.65	1.41	9.44	15.13	22.80	2.19	445.53	75.90	72	4.40
Relatively Low	62.24	44.19	0.96	5.55	11.46	13.83	27.30	2.11	453.84	74.62	69	4.22
Relatively Moderate	65.86	43.77	0.87	3.58	17.61	13.96	27.83	2.15	510.98	75.29	48	2.93
Relatively High	78.68	52.35	0.94	3.47	21.85	22.24	24.16	2.17	552.65	78.12	8	0.49
Very High	41.38	15.83	0.24	1.03	24.27	9.55	40.09	1.84	603.50	72.25	2	0.12
No Data	38.85	23.63	1.63	0.61	12.98	14.69	26.74	1.91	372.02	72.12	1437	87.84

Riverine Flooding

Per. Minority, Per. Black, Per. Hispanic, Per. Asian are generally higher for higher riverine flooding risk categories
Ppl/Unit, Rent, Female Head of Household tend to increase for higher riverine flooding risk categories
Should look in detail at 6 counties in Very High category

Public Housing Demographics in Counties by Riverine Flooding Risk Rating (n=1636)
Riverine Flooding Risk	Per. Minority	Per. Black	Per. Native	Per. Asian	Per. Hispanic	Per Overhoused	Per. Elderly	Ppl/Unit	Rent/Month	Per. Fem. Head	n	Per. of Total
Very Low	35.61	26.25	1.77	0.43	7.15	15.27	29.25	1.83	380.96	71.87	461	28.18
Relatively Low	35.51	26.05	1.63	0.75	7.08	12.83	25.74	1.95	386.80	71.63	643	39.30
Relatively Moderate	43.31	27.48	1.82	1.22	12.77	13.34	26.57	2.00	406.03	72.49	356	21.76
Relatively High	65.18	37.18	1.12	3.88	22.92	13.15	28.14	2.10	448.83	74.69	95	5.81
Very High	79.60	60.28	0.50	1.61	16.59	11.89	22.58	2.17	359.05	76.20	6	0.37
No Data	89.39	0.34	1.29	0.87	86.90	35.51	16.77	2.12	192.99	81.14	75	4.58

Wildfire

Per. Minority, Per. Black, Per. Native, Per. Asian, Per. Hispanic are generally higher for higher riverine flooding risk categories
Ppl/Unit, Rent, Female Head of Household tend to increase for higher wildfire risk categories
Should look in detail at 1 county in Very High category (big jump in Rent/Month)

Public Housing Demographics in Counties by Wildfire Risk Rating (n=1636)
Wildfire Risk	Per. Minority	Per. Black	Per. Native	Per. Asian	Per. Hispanic	Per Overhoused	Per. Elderly	Ppl/Unit	Rent/Month	Per. Fem. Head	n	Per. of Total
Very Low	37.28	29.76	0.87	0.74	5.90	13.70	27.11	1.92	389.82	72.16	1036	63.33
Relatively Low	39.87	21.71	2.87	0.80	14.47	14.13	28.35	1.91	393.71	71.29	339	20.72
Relatively Moderate	44.86	23.33	3.96	1.95	15.60	13.22	25.27	1.99	401.26	73.00	157	9.60
Relatively High	61.18	17.03	5.70	5.55	32.72	12.25	25.46	2.25	455.46	73.34	39	2.38
Very High	87.55	26.23	1.04	3.94	56.34	11.87	17.05	2.50	831.80	81.86	1	0.06
No Data	99.84	0.04	0.00	0.00	99.80	38.62	13.82	2.17	144.25	82.89	64	3.91