Official data current

County Cost Group 870 BAH rates

Verified · Effective 2026-01-01 · MHA ZZ870

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O-4 · With dependents
$3,627per month

$43,524 per year · federal tax-free allowance

Official DoD / DTMO rate · CONUS BAH, not an estimate

National position #75 of 338O-4 · with dependents reference
Taxable-pay equivalent$4,650/mo Using the stated 22% comparison rate
Year-over-year change+$237/mo · +7.0%2025 $3,390 → 2026 $3,627
O-4 rate selectedMHA ZZ870 ZIPs 03215 03217 03222 03223 03238 03240 +232
PCS compare County Cost Group 870 · O-4 · with dep. · $3,627/mo
County Cost Group 870 $3,627/mo · $43,524/yr
CURRENT

Pick a station below to see what the move is worth a year, before tax. Orders rarely arrive as one option — add several and rank them.

Comparison uses with-dependents rates. Differences are annual and untaxed. Rate protection is not applied — a PCS resets you to the new location's current-year rate.

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Rate history

How updates work
2025$3,390
2026$3,627

Verified official history. With-dependents rate shown; use the dependency switch above for its exact comparison.

COUNTY COST GROUP

This is not one installation. DTMO groups counties without a dedicated base into a "County Cost Group". The rate applies to any member whose duty location falls in one of the ZIP codes listed above.

County Cost Group 870 — full sheet Tap a row

What this rate means

O-4 with dependents, nearest stations0 – $7,470 / month
Westchester County $7,470
Madison $3,759
Quantico $3,753
Hampden County $3,747
Stockton $3,738
Ketchikan $3,720
Willow Grove $3,714
New London $3,654
Cape May $3,639
Sitka $3,639
San Bernardino $3,630
County Cost Group 870 $3,627
Edwards AFB $3,597
Fort Detrick $3,573
Milwaukee $3,564
Kodiak Island $3,555
Ballston Spa $3,549
Eglin AFB $3,528
Astoria $3,480
Baltimore $3,477
Outer Banks $3,438
Philadelphia $3,435
Youngstown $1,809

County Cost Group 870 is #75 of 338. The spread between the dearest and cheapest station at this grade is $5,661 a month — $67,932 a year, untaxed.

Every pay grade at County Cost Group 8700 – $3,945 / month
E-1 $2,478
E-2 $2,478
E-3 $2,478
E-4 $2,478
E-5 $2,652
E-6 $2,997
E-7 $3,096
E-8 $3,204
E-9 $3,372
W-1 $3,018
W-2 $3,141
W-3 $3,273
W-4 $3,408
W-5 $3,573
O-1E $3,114
O-2E $3,252
O-3E $3,432
O-1 $2,700
O-2 $2,994
O-3 $3,270
O-4 $3,627
O-5 $3,882
O-6 $3,915
O-7 $3,945

The pay chart moves this allowance far less than the map does.

Moving from County Cost Group 870 to Westchester County at O-4 is worth $3,843 a month — about 15 promotions at this grade. Where you are stationed outweighs rank, by a lot.

What the rate table does not tell you

01

“With dependents” is a dependency status, not a marital status. A single member paying child support can be authorized BAH-Diff; a married dual-military couple with no children is not automatically the with-dependents rate for both. If your situation is unusual, your finance office decides — not this table.

02

O-8, O-9 and O-10 draw the same BAH as O-7. The table stops there for a reason, not because it is missing rows.

03

This is CONUS BAH only. Overseas is OHA, which works differently — it reimburses actual rent up to a cap, with separate utility and move-in allowances. Alaska and Hawaii are BAH; Germany, Japan and Korea are OHA.

Source: DoD Defense Travel Management Office, effective 01 JAN 2026. How these rates are sourced and checked.

Source record

Where these numbers come from

Official fields remain unchanged. Years are aligned by DTMO's MHA code; no missing value is interpolated.

2026 official releaseDTMO source archive
Effective
2026-01-01
Retrieved
2026-09-05
Last verified
2026-09-07
SHA-256
5446fed831e1…
2025 official releaseDTMO source archive
Effective
2025-01-01
Retrieved
2026-09-07
Last verified
2026-09-07
SHA-256
32d18c4220e8…