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Medicare Advantage Enrollment Tracker · New Jersey

Medicare Advantage Enrollment in New Jersey

New Jersey had 767,076 Medicare Advantage members in September 2026, by the CMS county file, which includes employer group plans. That is up 2.9% from Sep 2025, faster than the national 2.0%. New Jersey ranks 15th by members and holds 2.1% of the national total.

Aetna/CVS leads with 30.8% of members who have a carrier label (contract file, September 2026). UnitedHealthcare led a year earlier. Among individual plans, which leave out employer group coverage, enrollment is up 4.3% in the 12 months to September 2026.

By Senior Deal Club Standards Desk · Data as of September 2026 · Editorial policy

Data as ofCMS public files, monthly snapshot

  • These totals include employer and union group plans.
    Why this matters

    The CMS contract and county files count group plans that retirees get through a former employer. They are not plans you can pick on your own. Counts here are larger than the individual-plan counts on county pages.

  • Some months are missing from the source.
    Why this matters

    CMS did not publish every month. Lines break at a missing month instead of guessing a value. A dotted line, where shown, only joins the two sides.

New Jersey at a glance

Medicare Advantage members

767,076

New Jersey members by month: from 646K in Jan 2023 to 767K in Sep 2026

County file · Sep 2026. Includes employer group plans. Rank: 15.

County file · Sep 2026
CMS state, county and plan-type file (SCP). The same plans split by state and county, with employer and union group plans included. CMS hides counts of 10 or fewer.

12-month change

+2.9%

up 2.9 percent vs Sep 2025

County file · Sep 2026. National: +2.0%.

Share of national total

2.1%

County file · Sep 2026. Of jurisdictions that report every month.

Individual plan members

527,825

Individual MA · Sep 2026. Employer group plans left out.

Individual MA · Sep 2026
Individual Medicare Advantage plans (IND), from county data. Employer and union group plans are left out, so counts are smaller than in the other two files.

Largest carrier

Aetna/CVS

30.8% of members with a carrier label. Contract file · Sep 2026.

New Jersey members by month

Medicare Advantage members in New Jersey

Members, by month.

County file · Sep 2026
CMS state, county and plan-type file (SCP). The same plans split by state and county, with employer and union group plans included. CMS hides counts of 10 or fewer.
Medicare Advantage members in New JerseyLine chart, January 2023 to September 2026. New Jersey: 767K in September 2026. Shaded bands mark months with no data.600K650K700K750K800K2023202420252026New Jersey767K
Medicare Advantage members in New JerseyLine chart, January 2023 to September 2026. New Jersey: 767K in September 2026. Shaded bands mark months with no data.600K650K700K750K800K20232025New767K
  • New Jersey
  • Shaded: no data that month
View the data table
Medicare Advantage members in New Jersey: values by month
MonthNew Jersey
Sep 2026767K
Aug 2026766K
Jul 2026765K
Jun 2026763K
May 2026762K
Apr 2026760K
Mar 2026758K
Feb 2026757K
Jan 2026748K
Dec 2025749K
Nov 2025748K
Oct 2025747K
Sep 2025745K
Aug 2025744K
Jul 2025741K
Jun 2025739K
May 2025737K
Apr 2025735K
Mar 2025733K
Feb 2025729K
Jan 2025718K
Dec 2024720K
Nov 2024720K
Oct 2024718K
Sep 2024719K
Aug 2024716K
Jul 2024714K
Jun 2024714K
May 2024714K
Apr 2024709K
Mar 2024707K
Feb 2024705K
Jan 2024701K
Dec 2023–
Nov 2023680K
Oct 2023678K
Sep 2023675K
Aug 2023673K
Jul 2023–
Jun 2023668K
May 2023666K
Apr 2023663K
Mar 2023660K
Feb 2023657K
Jan 2023646K

County file · Sep 2026. Employer group plans included.

New Jersey and the nation, Jan 2023 = 100

Each line is members divided by members in the start month, times 100.

County file · Sep 2026
CMS state, county and plan-type file (SCP). The same plans split by state and county, with employer and union group plans included. CMS hides counts of 10 or fewer.
New Jersey and the nation, Jan 2023 = 100Line chart, January 2023 to September 2026. New Jersey: 118.8 in September 2026. National (same jurisdictions each month): 117.8 in September 2026. Shaded bands mark months with no data.1001051101151202023202420252026New Jersey118.8National117.8
New Jersey and the nation, Jan 2023 = 100Line chart, January 2023 to September 2026. New Jersey: 118.8 in September 2026. National (same jurisdictions each month): 117.8 in September 2026. Shaded bands mark months with no data.10010511011512020232025New118.8National117.8
  • New Jersey
  • National (same jurisdictions each month)
  • Shaded: no data that month
View the data table
New Jersey and the nation, Jan 2023 = 100: values by month
MonthNew JerseyNational (same jurisdictions each month)
Sep 2026118.8117.8
Aug 2026118.6117.8
Jul 2026118.4117.5
Jun 2026118.3117.4
May 2026118117.2
Apr 2026117.7116.9
Mar 2026117.4116.7
Feb 2026117.3116.3
Jan 2026115.9114.7
Dec 2025116115.9
Nov 2025115.9115.9
Oct 2025115.6115.7
Sep 2025115.5115.5
Aug 2025115.2115.3
Jul 2025114.8115
Jun 2025114.5114.8
May 2025114.2114.4
Apr 2025113.9114.2
Mar 2025113.6113.8
Feb 2025113113.4
Jan 2025111.2111.9
Dec 2024111.5112
Nov 2024111.5112
Oct 2024111.3111.7
Sep 2024111.4111.5
Aug 2024110.9111.2
Jul 2024110.6110.9
Jun 2024110.6110.7
May 2024110.6110.5
Apr 2024109.8110
Mar 2024109.5109.7
Feb 2024109.3109.3
Jan 2024108.6108.7
Dec 2023––
Nov 2023105.4105.9
Oct 2023105105.6
Sep 2023104.6105.2
Aug 2023104.2104.9
Jul 2023––
Jun 2023103.4104.1
May 2023103.1103.8
Apr 2023102.7103.4
Mar 2023102.3103
Feb 2023101.8102.2
Jan 2023100100

County file · Sep 2026. National line sums the jurisdictions that report in every month.

Individual plans

Individual plans leave out employer and union group coverage, so counts are smaller than in the county file.

Carrier share in New Jersey

Share of members whose contract has a carrier label, September 2026 against September 2025.

Contract file · Sep 2026
CMS contract file (SCC). All Medicare Advantage contracts, with employer and union group plans included. It still lists Connecticut and Alaska.

Aetna/CVS leads with 30.8% of members who have a carrier label (contract file, September 2026). UnitedHealthcare led a year earlier.

UnitedHealthcare lost 3.9 points in 12 months; most of that change came in January 2026.

Clover gained 4.6 points in 12 months; most of that change came in January 2026.

UnitedHealthcare and Humana together hold 35.9%, down 1.6 points from Sep 2025.

The market is less concentrated than a year earlier (direction only; the level depends on how carriers are grouped).

Carrier share, Sep 2025 to Sep 2026

Percent of members with a carrier label. Largest carriers.

Carrier share, Sep 2025 to Sep 2026Slope chart comparing Sep 2025 with Sep 2026. Aetna/CVS: 31.3% to 30.8%; UnitedHealthcare: 32.5% to 28.7%; Clover: 12.8% to 17.4%; Horizon/BCBS: 10.8% to 10.0%; Humana: 4.9% to 7.2%; Elevance/Anthem: 2.6% to 2.1%.Sep 2025Sep 2026Aetna/CVS 31.3%30.8% Aetna/CVSUnitedHealthcare 32.5%28.7% UnitedHealthcareClover 12.8%17.4% CloverHorizon/BCBS 10.8%10.0% Horizon/BCBSHumana 4.9%7.2% HumanaElevance/Anthem 2.6%2.1% Elevance/Anthem
Carrier share, Sep 2025 to Sep 2026Slope chart comparing Sep 2025 with Sep 2026. Aetna/CVS: 31.3% to 30.8%; UnitedHealthcare: 32.5% to 28.7%; Clover: 12.8% to 17.4%; Horizon/BCBS: 10.8% to 10.0%; Humana: 4.9% to 7.2%; Elevance/Anthem: 2.6% to 2.1%.Sep 2025Sep 2026Aetna 31.3%30.8%UHC 32.5%28.7%Clover 12.8%17.4%Blue Cross 10.8%10.0%Humana 4.9%7.2%Elevance 2.6%2.1%
View the data table
Carrier share, Sep 2025 to Sep 2026: Sep 2025 and Sep 2026
NameSep 2025Sep 2026Change
Aetna/CVS31.3%30.8%−0.5 pts
UnitedHealthcare32.5%28.7%−3.9 pts
Clover12.8%17.4%+4.6 pts
Horizon/BCBS10.8%10.0%−0.8 pts
Humana4.9%7.2%+2.3 pts
Elevance/Anthem2.6%2.1%−0.5 pts

Contract file · Sep 2026. Employer group plans included.

Carrier share of Medicare Advantage members with a carrier label, New Jersey, September 2026
CarrierShare, Sep 2026Share, Sep 2025ChangeMembers
Aetna/CVS30.8%31.3%−0.5 pts233,256
UnitedHealthcare28.7%32.5%−3.9 pts217,287
Clover17.4%12.8%+4.6 pts131,777
Horizon/BCBS10.0%10.8%−0.8 pts75,798
Humana7.2%4.9%+2.3 pts54,532
Elevance/Anthem2.1%2.6%−0.5 pts15,689
Centene/Wellcare1.7%1.9%−0.2 pts12,771
Independence/BCBS1.1%1.4%−0.2 pts8,372
HCSC/BCBS0.5%1.4%−0.9 pts3,784
Thomas Jefferson University0.4%0.2%+0.2 pts3,006
All other carriers0.2%––1,405

Insurer not assigned in CMS data: 1.0% of all members in Sep 2026, 1.1% in Sep 2025. Shares leave these members out. Contract IDs are renumbered each January, so this page follows carriers, not contracts. A contract that serves several states carries one carrier label, so a carrier can appear in a state where it is not a local plan. See the carrier view for the whole nation.

Biggest counties in New Jersey

Individual plan members and the 12-month change for each county, from county data.

Individual MA · Sep 2026
Individual Medicare Advantage plans (IND), from county data. Employer and union group plans are left out, so counts are smaller than in the other two files.
Biggest counties in New Jersey by individual Medicare Advantage members, September 2026
CountyMembers12-month changeLeading carrierLeader's share
Bergen53,295+4.5%UnitedHealthcare38.9%
Essex52,292+3.8%UnitedHealthcare43.7%
Middlesex47,770+5.0%UnitedHealthcare40.3%
Hudson44,352+3.8%Clover37.7%
Ocean39,878+3.2%Horizon/BCBS33.4%
Passaic37,680+4.2%Clover36.4%
Camden34,677+3.4%Clover20.8%
Union34,370+3.7%UnitedHealthcare41.4%
Monmouth28,141+3.9%UnitedHealthcare28.6%
Burlington25,828+5.0%UnitedHealthcare25.9%

Browse all counties.

Common questions

How many people have Medicare Advantage in New Jersey?

New Jersey had 767,076 members in September 2026, by the CMS county file (employer group plans included). Individual plans, which leave out employer group coverage, had 527,825 members in September 2026.

Is Medicare Advantage growing in New Jersey?

Enrollment is up 2.9% from Sep 2025 to Sep 2026, faster than the national 2.0%. Among individual plans, which leave out employer group coverage, enrollment is up 4.3% in the 12 months to September 2026.

Which carrier has the most Medicare Advantage members in New Jersey?

Aetna/CVS leads with 30.8% of members who have a carrier label (contract file, September 2026). UnitedHealthcare led a year earlier. UnitedHealthcare and Humana together hold 35.9%, down 1.6 points from Sep 2025. Shares leave out members whose contract has no carrier label: 1.0% of members.

Cite and download

Cite this page

Senior Deal Club Standards Desk. Medicare Advantage Enrollment in New Jersey, data as of September 2026. Source: CMS public enrollment files. https://www.seniordealclub.com/medicare-advantage/enrollment/states/new-jersey

Download New Jersey CSV

Data: CMS public enrollment files, in a monthly snapshot processed by TapQuality. Senior Deal Club is not affiliated with Medicare or any government agency.

These pages are educational. They are not plan advice. How the numbers are built · Editorial policy