Monroe County
New York · County seat: Rochester · Active county or equivalent
FIPS code 36055 is Monroe County, New York. With a population of 756,406 (2022 ACS estimate), it ranks #9 in New York and #85 nationally. Monroe County is part of the Rochester, NY. The state FIPS code for New York is 36. This code is used in Census Bureau, BLS, EPA, HUD, and USDA federal datasets to identify this county.
County FIPS
36055
Population
756,406
2022 ACS · #85 nationally
Density
1,150.9/mi²
people per sq mile
Land Area
657
sq miles
Urban/Rural
Metro — 1M+ population
RUCC 1
How This FIPS Code Works
The 5-digit FIPS code 36055 is formed by combining the 2-digit state identifier 36 (New York) with the 3-digit county identifier 055. Together they uniquely identify Monroe County in every US federal dataset. No two counties share the same 5-digit FIPS code.
Census ACS Data for FIPS 36055
From the 2022 ACS 5-year estimates — the same values you'd retrieve by querying the Census API with county FIPS 36055.
Median Household Income
$71,450
ACS B19013_001E
Poverty Rate
13.5%
ACS B17001 (below poverty level)
Median Age
39.3
ACS B01002_001E
Metropolitan Area
Adjacent Counties (5)
Counties that share a border with Monroe County. Useful for regional analysis — these are the geographies you'd typically include when studying labor markets, commuting zones, or environmental spillovers around FIPS 36055.
Federal Datasets Using Code 36055
FIPS code 36055 appears as the county identifier in the following federal datasets. Analysts joining data across these sources use this code as the common geographic key.
Using FIPS Code 36055 in Code
Common patterns for querying federal datasets by this county's FIPS code. The leading zeros are significant — always treat FIPS codes as strings, not integers.
import requests
url = "https://api.census.gov/data/2022/acs/acs5"
params = {
"get": "NAME,B19013_001E,B01003_001E",
"for": "county:055",
"in": "state:36",
"key": "YOUR_CENSUS_API_KEY",
}
r = requests.get(url, params=params)
data = r.json() # [[header...], [Monroe County, New York, income, pop, ...]-- 5-digit combined FIPS (state + county)
SELECT * FROM your_table WHERE county_fips = '36055';
-- Some datasets store state and county separately
SELECT * FROM your_table
WHERE state_fips = '36'
AND county_fips = '055';
-- ⚠ Never cast to integer — leading zeros are lost:
-- county_fips = 36055 is WRONG for this countylibrary(tidycensus)
get_acs(
geography = "county",
variables = c(income = "B19013_001E", pop = "B01003_001E"),
state = "36",
county = "055",
year = 2022
)ZIP Codes in Monroe County
ZIP codes do not align perfectly with county boundaries — a single ZIP code can span multiple counties, and a county can contain parts of many ZIP codes. The ratios below (from the Census 2020 ZCTA relationship file) show the land area share of each ZCTA that falls within Monroe County. Why FIPS ≠ ZIP →
| ZIP Code | % in county |
|---|---|
| 14642 | 100.0% |
| 14613 | 100.0% |
| 14614 | 100.0% |
| 14615 | 100.0% |
| 14616 | 100.0% |
| 14617 | 100.0% |
| 14618 | 100.0% |
| 14619 | 100.0% |
| 14620 | 100.0% |
| 14621 | 100.0% |
| 14622 | 100.0% |
| 14623 | 100.0% |
| 14624 | 100.0% |
| 14625 | 100.0% |
| 14626 | 100.0% |
| 14627 | 100.0% |
| 14428 | 100.0% |
| 14445 | 100.0% |
| 14467 | 100.0% |
| 14468 | 100.0% |
| 14506 | 100.0% |
| 14511 | 100.0% |
| 14514 | 100.0% |
| 14515 | 100.0% |
| 14526 | 100.0% |
| 14543 | 100.0% |
| 14559 | 100.0% |
| 14586 | 100.0% |
| 14604 | 100.0% |
| 14605 | 100.0% |
Showing top 30 of 52 ZIP codes by residential address share.