Data

 What do we measure?


District Reference Groups (DRGs)

docs/CT DRGs.pdf

Formerly Educational Reference Groups (ERGs)

June 2006

Since 1996, the Connecticut State Department of Education has divided school districts into nine groups called

Educational Reference Groups.i These nine groups are determined according to socio-economic status and other

factors. The nine groups, labeled A through I, were recently reclassified District Reference Groups (DRGs) using

updated data but the same formula.ii

Seven data indicators are used to classify similar districts into a DRG: three indicators of socioeconomic status

(median family income1, parental education1 and parental occupation1), three indicators of need (percentage of

children living in families with a single parent1, the percentage of public school children eligible to receive free or

reduced-price meals2 and percentage of children whose families speak a language other than English at home2) and

enrollment (the number of students attending schools in that district2).iii

The most affluent and low-need districts, as measured by these indicators, are grouped in DRG A while the poorest

and highest need districts – including Connecticut’s five biggest cities – are grouped in DRG I. Following this new

re-classification, many of the 169 school districts are in the DRG that corresponds to their former ERG

classification (where DRGs A, B, C through I correspond respectively to ERGs A, B, C through I). Twenty-seven

districts were reclassified into less affluent, higher need DRGs than their former ERGs, and 23 were reclassified

into more affluent, lower need DRGs than their former ERGs.iv

The composition of some reference groups changed little as a result of

this new classification. DRG I comprises the seven districts that made

up ERG I and includes no districts previously classified in other ERGs.

Seventeen of the nineteen districts formerly in ERG B are now

classified in DRG B. Nine of the twelve districts previously classified in

ERG A are now classified in DRG A.

The composition of groups F and G changed most dramatically after

the June 2006 re-classification. Only three districts that had been

classified in ERG G remain in DRG G and only five former ERG F

districts remain in DRG F. The table above indicates the number of

districts in each (former) ERG, in each DRG and the number reclassified

into the same reference group it was in before. The table on

the reverse of this fact sheet indicates each district’s previous and new classification.

 

i Since the late 1970s, the Department has used Census and other data to classify districts, first in six groups and later seven.

ii Educational Reference Groups were designated using 1990 Census data while the new District Reference Groups were determined using

2000 Census data as well as updated enrollment data and a new indicator of poverty.

iii The socioeconomic status and need data describe the resident population of the school district, which may not be the same population

the district serves.

iv It is important to note that districts are categorized relative to other districts using a statistical model, not according to absolute measures

of socioeconomic status, need or enrollment, ant that changes in DRG designation may reflect this relative status rather than a change in

the data indicators.

1. Based on National Center for Educational Statistics census data from 2000 Census. 2. Based on Public School Information System.

 

Town ERG DRG Change Town ERG DRG Change Town ERG DRG Change

Andover C C – Hartford I I – Sherman C C –

Ansonia H H – Hartland E E – Simsbury A B

Ashford E E – Harwinton Somers C C –

Avon A B Hebron C C – South Windsor B B –

Barkhamsted C C – Kent E E – Southbury

Beacon Falls Killingly H G Southington D D –

Berlin D D – Killingworth Sprague G F

Bethany C C – Lebanon E E – Stafford G F

Bethel B D Ledyard C D Stamford H H –

Bethlehem Lisbon E E – Sterling G F

Bloomfield F G Litchfield C E Stonington F D

Bolton C C – Lyme Stratford F G

Bozrah C E Madison B B – Suffield C C –

Branford D D – Manchester F G Thomaston G E

Bridgeport I I – Mansfield C C – Thompson G F

Bridgewater Marlborough B C Tolland D C

Bristol H G Meriden H H – Torrington F G

Brookfield B B – Middlebury Trumbull B B –

Brooklyn E E – Middlefield Union E E –

Burlington Middletown H G Vernon F G

Canaan E E – Milford F D Voluntown G F

Canterbury E F Monroe B B – Wallingford F D

Canton C C – Montville F F – Warren

Chaplin G E Morris Washington

Cheshire B B – Naugatuck F G Waterbury I I –

Chester E E – New Britain I I – Waterford F D

Clinton D D – New Canaan A A – Watertown D D –

Colchester D D – New Fairfield B B – West Hartford B B –

Colebrook E E – New Hartford C C – West Haven H H –

Columbia D C New Haven I I – Westbrook C E

Cornwall C C – New London I I – Weston A A –

Coventry E E – New Milford D D – Westport A A –

Cromwell E D Newington D D – Wethersfield D D –

Danbury H H – Newtown B B – Willington C E

Darien A A – Norfolk E E – Wilton A A –

Deep River C E North Branford D E Winchester G G –

Derby H H – North Canaan G F – Windham I I –

Durham North Haven D D – Windsor D D –

East Granby C D North Stonington E E – Windsor Locks F F –

East Haddam E E – Norwalk H H – Wolcott F F –

East Hampton D D – Norwich H H – Woodbridge A B

East Hartford H H – Old Lyme Woodbury

East Haven G G – Old Saybrook D D – Woodstock C E

East Lyme D D – Orange B B –

East Windsor G F Oxford C C –

Eastford E E – Plainfield G G –

Easton A A – Plainville G F 1 E E –

Ellington C C – Plymouth G F 4 C C –

Enfield F F – Pomfret C C – 5 B B –

Essex C C – Portland E E – 6 C E

Fairfield B B – Preston C E 7 C C –

Farmington B B – Prospect 8 C C –

Franklin E E – Putnam H G 9 A A –

Glastonbury B B – Redding A A – 10 C C –

Goshen Ridgefield A A – 11 E F

Granby B B – Rocky Hill D D – 12 D C

Greenwich B B – Roxbury 13 C C –

Griswold G F Salem C C – 14 C C –

Groton F G Salisbury C E 15 C B

Guilford B B – Scotland E E – 16 E E –

Haddam Seymour F F – 17 C C –

Hamden D G Sharon E E – 18 C C –

Hampton E E – Shelton D D – 19 C C –

Changed to More Affluent/Lower Need Reference Group Note: Some towns that belong to regional districts


 

docs/appndxa.pdf

Appendix A

District Reference Groups (DRG)

 

Group A

035 DARIEN 

090 NEW CANAAN 

118 RIDGEFIELD 

158 WESTPORT 

209 DISTRICT NO. 9

046 EASTON 

117 REDDING 

157 WESTON 

161 WILTON

 

Group B

004 AVON 

054 GLASTONBURY 

076 MADISON 

107 ORANGE 

155 WEST HARTFORD

018 BROOKFIELD 

056 GRANBY 

085 MONROE 

128 SIMSBURY 

167 WOODBRIDGE

025 CHESHIRE 

057 GREENWICH 

091 NEW FAIRFIELD 

132 SOUTH WINDSOR 

205 DISTRICT NO. 5

051 FAIRFIELD 

060 GUILFORD 

097 NEWTOWN 

144 TRUMBULL 

215 DISTRICT NO. 15

052 FARMINGTON

 

Group C

001 ANDOVER 

031 CORNWALL 

092 NEW HARTFORD 

139 SUFFIELD 

212 DISTRICT NO. 12

005 BARKHAMSTED 

048 ELLINGTON 

108 OXFORD 

142 TOLLAND 

213 DISTRICT NO. 13

008 BETHANY 

050 ESSEX 

112 POMFRET 

204 DISTRICT NO. 4 

214 DISTRICT NO. 14

012 BOLTON 

067 HEBRON 

121 SALEM 

207 DISTRICT NO. 7 

217 DISTRICT NO. 17

023 CANTON 

078 MANSFIELD 

127 SHERMAN 

208 DISTRICT NO. 8 

218 DISTRICT NO. 18

030 COLUMBIA 

079 MARLBOROUGH 

129 SOMERS 

210 DISTRICT NO. 10 

219 DISTRICT NO. 19

 

Group D

007 BERLIN 

033 CROMWELL 

084 MILFORD 

119 ROCKY HILL 

152 WATERFORD

009 BETHEL 

040 EAST GRANBY 

094 NEWINGTON 

126 SHELTON 

153 WATERTOWN

014 BRANFORD 

042 EAST HAMPTON 

096 NEW MILFORD 

131 SOUTHINGTON 

159 WETHERSFIELD

027 CLINTON 

045 EAST LYME 

101 NORTH HAVEN 

137 STONINGTON 

164 WINDSOR

028 COLCHESTER 

072 LEDYARD 

106 OLD SAYBROOK 

148 WALLINGFORD

 

Group E

003 ASHFORD 

032 COVENTRY 

068 KENT 

113 PORTLAND 

154 WESTBROOK

013 BOZRAH 

036 DEEP RIVER 

071 LEBANON 

114 PRESTON 

160 WILLINGTON

019 BROOKLYN 

039 EASTFORD 

073 LISBON 

122 SALISBURY 

169 WOODSTOCK

021 CANAAN 

041 EAST HADDAM 

074 LITCHFIELD 

123 SCOTLAND 

201 DISTRICT NO. 1

024 CHAPLIN 

053 FRANKLIN

 098 NORFOLK 

125 SHARON 

206 DISTRICT NO. 6

026 CHESTER 

063 HAMPTON 

099 NORTH BRANFORD 

140 THOMASTON 

216 DISTRICT NO. 16

029 COLEBROOK 

065 HARTLAND 

102 NORTH STONINGTON 

145 UNION 

903 WOODSTOCK ACADEMY

 

Group F

022 CANTERBURY 

086 MONTVILLE 

111 PLYMOUTH 

134 STAFFORD 

147 VOLUNTOWN

047 EAST WINDSOR 

100 NORTH CANAAN 

124 SEYMOUR 

136 STERLING 

165 WINDSOR LOCKS

049 ENFIELD 

110 PLAINVILLE 

133 SPRAGUE 

141 THOMPSON 

166 WOLCOTT

058 GRISWOLD 

211 DISTRICT NO. 11

 

Group G

011 BLOOMFIELD 

062 HAMDEN 

083 MIDDLETOWN 

116 PUTNAM 

146 VERNON

017 BRISTOL 

069 KILLINGLY 

088 NAUGATUCK 

138 STRATFORD 

162 WINCHESTER

044 EAST HAVEN 

077 MANCHESTER 

109 PLAINFIELD 

143 TORRINGTON 

901 NORWICH FREE ACAD.

059 GROTON 

902 GILBERT SCHOOL

 

Group H

002 ANSONIA 

037 DERBY 

080 MERIDEN 

104 NORWICH 

156 WEST HAVEN

034 DANBURY 

043 EAST HARTFORD 

103 NORWALK 

135 STAMFORD

 

Group I

015 BRIDGEPORT 

089 NEW BRITAIN 

093 NEW HAVEN 

095 NEW LONDON 

151 WATERBURY

064 HARTFORD 

163 WINDHAM

 

 


http://ctdata.org/catalog

Browse Subject Areas to discover indicators

Source

Years

Civic Vitality

 

 

 


E-mail Contact

Absenteeism
Asset-Mapping
Aquaponics
Basic Needs
Bible
Brain Development
Children
Collective Impact
Community Building
Community Schools
Cradle2Career
Culture
Data
DCF
Definitions- terms
Determinants of Health
DHMAS
Drop-out
Drugs
Education
Faith Community
Fatherhood
Financial
Food
Funders
Healthy People 2020
Healthy people 2020 Resources
Health-Mental DHMAS
Homelessness
Home Visits
Housing
Hunger
Intro
KINGDOM SOLUTIONS.US -- Is there a better way? - HOME
Legal
Jobs
Kingdom Verses
Marriage
Martin Luther King, Jr.
Mission

National Prevention Strategy

Obesity
Parenting
Placemaking
Poverty
Prevention
Programs
Public Opinion
Quotes
RBA
Reading
Regional Solutions
Safety
Sectors
Silo-busting
Smoking

Social capital

Solutions
Sources for opinions
Segregation
Social Genome Project
Protective Factors
Starting a not for profit
Status_of_CT
Stressors
Summer Learning
SWOT
Transportation
Youth_Service_Bureaus

 

E-mail Contact