OCID is unique to Oregon, integrating longitudinal data from programs across five state agencies. We invite you to explore the graphs and charts below to gain an understanding of who is included in the OCID population.


OCID Population Growth
The OCID population is defined as Oregon-resident births from 2001 onwards, including infants along with their parents as identified on the birth certificate.* This means the OCID population grows over time, as more children are born into it (thereby adding their parents).
919,000 children as of 2020 birth cohort
}
An average of 45,000 children are added to OCID with each birth cohort.
First birth cohort (children born in 2001) in OCID
2001
2020
* The OCID population is by definition restricted to “Oregon-born” children. It does not account for children who have moved out of the state since birth or the estimated 22% of Oregon residents under 18 years who were born outside of Oregon.

OCID Population Growth
The OCID population is defined as Oregon-resident births from 2001 onwards, including infants along with their parents as identified on the birth certificate.* This means the OCID population grows over time, as more children are born into it (thereby adding their parents).
919,000 children as of 2020 birth cohort
}
An average of 45,000 children are added to OCID with each birth cohort.
First birth cohort (children born in 2001) in OCID
2001
2020
* The OCID population is by definition restricted to “Oregon-born” children. It does not account for children who have moved out of the state since birth or the estimated 22% of Oregon residents under 18 years who were born outside of Oregon.

OCID Population Growth
The OCID population is defined as Oregon-resident births from 2001 onwards, including infants along with their parents as identified on the birth certificate.* This means the OCID population grows over time, as more children are born into it (thereby adding their parents).
919,000 children as of 2020 birth cohort
}
An average of 45,000 children are added to OCID with each birth cohort.
First birth cohort in OCID
2001
* The OCID population is by definition restricted to “Oregon-born” children. It does not account for children who have moved out of the state since birth or the estimated 22% of Oregon residents under 18 years who were born outside of Oregon.
OCID Completeness by Program (2020 Snapshot)
Program | Number of OCID children in program | Number of all Oregon children in program | OCID completeness: percent of total program enrollment |
---|---|---|---|
Education | 392,000 | 561,000 a |
![]() 70% |
Medicaid | 372,000 | 457,000 b |
![]() 81% |
Foster care | 7,000 | 10,000 c |
![]() 70% |
Sources:
a Oregon Department of Education, Student Membership Report, School Year 2019-20
b Oregon Health Authority Enrollment by Age, December 2020 (point in time)
c Oregon Department of Human Services 2020 Child Welfare Databook
OCID Completeness by Program (2018 Snapshot)
Program | Number of OCID children in program | Number of all Oregon children in program |
---|---|---|
Education | 392,000 | 561,000 a |
Medicaid | 372,000 | 457,000 b |
Foster care | 7,000 | 10,000 c |
Program | OCID completeness: percent of total program enrollment |
---|---|
Education |
![]() 70% |
Medicaid |
![]() 81% |
Foster care |
![]() 70% |
Sources:
a Oregon Department of Education, Student Membership Report, School Year 2018-19
b Oregon Health Authority Enrollment by Age, December 2018 (point in time)
c Oregon Department of Human Services 2018 Child Welfare Databook

Sex/Gender of OCID Population (Grades K-12, 2019-2020 Snapshot)
Compared to total Oregon public school enrollment
Not in OCID
Children in OCID
Male
73% in OCID
300,000 total enrollment
Female
73%
282,000
Non-binary
<500
Race/Ethnicity of OCID Population (Grades K-12, 2019-2020 Snapshot)
Compared to total Oregon public school enrollment
Children in OCID
Not in OCID
358,000 total
enrollment
White
75% in OCID
73%
Hispanic/Latino
138,000
Multi-racial
70% of 38,000
52% of 23,000
Asian
58% of 13,000
Black/African American
American Indian/Alaska Native
76% of 7,000
Native Hawaiian/Pacific Islander
51% of 4,000
Source for total enrollment: Oregon Department of Education

Sex/Gender of OCID Population
(Grades K-12, 2019-2020 Snapshot)
Compared to total Oregon public school enrollment
Not in OCID
Children in OCID
Male
73% in OCID
300,000 total enrollment
Female
73%
282,000
Non-binary
<500
Race/Ethnicity of OCID Population
(Grades K-12, 2019-2020 Snapshot)
Compared to total Oregon public school enrollment
Children in OCID
Not in OCID
358,000 total
enrollment
White
75% in OCID
73%
138,000
Hispanic/Latino
70% of 38,000
Multi-racial
52% of 23,000
Asian
58% of 13,000
Black/African American
76% of 7,000
American Indian/Alaska Native
51% of 4,000
Native Hawaiian/Pacific Islander
Source for total enrollment: Oregon Department of Education

Sex/Gender of OCID
Population (Grades K-12,
2019-2020 Snapshot)
Compared to total Oregon
public school enrollment
Male (300,000 total enrollment)
73% in OCID
Female (282,000)
73%
Non-binary (<500)
Race/Ethnicity of OCID
Population (Grades K-12,
2019-2020 Snapshot)
Compared to total Oregon
public school enrollment
White (358,000 total enrollment)
75% in OCID
Hispanic/Latino (138,000)
73%
Multi-racial (38,000)
70% in OCID
Asian (23,000)
52%
Black/African American (13,000)
58%
American Indian/Alaska Native (7,000)
76%
Native Hawaiian/Pacific Islander (4,000)
51%
Source for total enrollment: Oregon Department of Education