ACS 2021 release
2017-2021 five-year estimate
- Median home value B25077
- $155,200Margin of error ±$17,101
- Median gross rent B25064
- $570Margin of error ±$83
- Population B01003
- 2,440Margin of error ±291
Rental market · ZIP 50670 · Shell Rock, IA
ZIP 50670, Shell Rock, IA rental market
Population 2,270 · Shell Rock, Butler County, IA · ZIP Code Tabulation Area
Ranked · ACS 2024 5-year
FGRADE
20.9/100 · Rental Investor ZIP Score
National rank #19,204 of 20,132 scored ZIP Codes (5th percentile)
IA rank #452 of 504 · data confidence: moderate
Cash Flow & Affordability ZIP data
67
Local Demand & Market Quality ZIP data
18
Surrounding-Market Growth county / place context
18
Stability & Risk ZIP + place context
13
Why it ranks here: rent sits high relative to price and taxes (solid cash-flow/affordability).
Watch: the surrounding market is flat or declining. elevated stability/risk signals. rental vacancy is high (19.5%). survey margins of error are wider here (data confidence: moderate).
Cash Flow & Affordability was scored using a measured (Zillow) home value, giving an effective price-to-income of 2.78× and tax burden of 1.14% of value: the number this category's score is actually based on, which can differ from the ACS survey value shown elsewhere on this page.
A transparent screening score, not a return forecast. Affordable, higher-yield markets can score well when demand, liquidity, low vacancy, reliable government data and a growing surrounding market support them. Categories labeled “context” use official county/place data, never presented as ZIP-level observation. ZIP and city scores are not directly comparable. See how this score works.
How this ZIP ranks: nationally & in-state
Each bar places this ZIP against all 20,132 scored ZIP Codes nationally.Each bar places this ZIP against the 504 scored ZIP Codes in IA. The marker is this ZIP and further right is more favorable to an investor; the tick is the median.
Overall Rental Investor ZIP Scoreweighted 0–100 screening score
20.95th percentile
Cash Flow & Affordabilitycategory score 0–100
6784th percentile
Local Demand & Market Qualitycategory score 0–100
182nd percentile
Surrounding-Market Growthcategory score 0–100 county / place context
1819th percentile
Stability & Riskcategory score 0–100 ZIP + place context
131st percentile
← Less favorableMedianMore favorable →
Percentiles are the frozen model's own numbers among scored ZIP Codes (deterministic competition ranking); an unreliable or thin-peer in-state comparison reads “Not available,” never zero. All underlying figures are ACS survey estimates with margins of error. ZIP and city scores are not directly comparable. See how this score works.
Key metrics
2,270
Population ±15%
$171,500
Median home value (ACS, owner-reported) ±7%
$931
Median gross rent (ACS, incl. utilities) ±40%
6.5%
Survey gross-rent yield (proxy)
$84,679
Median household income ±9%
19.5%
Rental vacancy
12.8%
Renter share
1.6%
Estimated property-tax burden
1962
Median year built ±0%
2.2%
Multifamily (5+ units)
Market context
Trend context
Loading home value context…
View source data
Each point is one ACS 5-year estimate on the same 2020-Census ZCTA boundary. Adjacent releases overlap, so the release-to-release differences are not independent annual market movement.
| Series | 2017–2021 | 2018–2022 | 2019–2023 | 2020–2024 |
|---|---|---|---|---|
| Median home value B25077 | $155,200 ±$17,101 | $172,800 ±$25,787 | $172,100 ±$12,930 | $171,500 ±$12,530 |
| Median gross rent B25064 | $570 ±$83 | $617 ±$236 | $750 ±$412 | $931 ±$369 |
| Population B01003 | 2,440 ±291 | 2,378 ±308 | 2,379 ±323 | 2,270 ±332 |
ACS 2022 release
2018-2022 five-year estimate
- Median home value B25077
- $172,800Margin of error ±$25,787
- Median gross rent B25064
- $617Margin of error ±$236
- Population B01003
- 2,378Margin of error ±308
ACS 2023 release
2019-2023 five-year estimate
- Median home value B25077
- $172,100Margin of error ±$12,930
- Median gross rent B25064
- $750Margin of error ±$412
- Population B01003
- 2,379Margin of error ±323
ACS 2024 release
2020-2024 five-year estimate
- Median home value B25077
- $171,500Margin of error ±$12,530
- Median gross rent B25064
- $931Margin of error ±$369
- Population B01003
- 2,270Margin of error ±332
Source: U.S. Census Bureau, American Community Survey 5-year, table-based Summary File (ZCTA geography); tables B25077 (median value), B25064 (median gross rent), and B01003 (population); estimate + margin of error. Missing releases remain gaps and are never interpolated. Home value is owner-reported; gross rent describes renter housing stock; population is a ZCTA estimate. Dollar figures are nominal.
Measured market data
Measured observations for this ZIP Code, published beside the government survey figures above rather than replacing them. They measure different things and will legitimately disagree: the ACS median home value is what owners report their home is worth in a 5-year survey, while ZHVI is a monthly index of typical home value; ACS median gross rent is what sitting tenants pay including utilities, while ZORI is an index of asking rent on newly listed units. ZORI does not correct the ACS rent; neither is a better version of the other. Monthly series, revised in recent months, observed 2026-07, not live.
| Zillow Home Value Index (ZHVI, mid tier) | $235,783 |
|---|---|
| ZHVI bottom tier (5th–35th pct) | $147,881 |
| ZHVI top tier (65th–95th pct) | $405,774 |
| Market heat index | 46 |
| Measured 3-yr value growth | 2.96%/yr |
| Measured 5-yr value growth | 5.33%/yr |
| Measured 10-yr value growth | 4.87%/yr |
| ZHVI, 2-bedroom | $200,155 |
| ZHVI, 3-bedroom | $252,987 |
| ZHVI, 4-bedroom | $262,534 |
Measured value-growth signal: 52 of 100: this ZIP Code area ranks #9,314 of 19,419 ZIP Codes with a measured 3-year value growth rate. This is a separate national signal, published beside the overall score and deliberately not folded into it.
Source: Zillow Economic Research public research data, observation month 2026-07. Zillow keys on USPS ZIP codes; this page is a 2020 Census ZCTA, related but not identical geographies, so a Zillow value is matched to this ZCTA by code and is not a statement that the two areas are the same. Zillow is not affiliated with, and does not endorse, Compounding Estates.
Market Negotiation Leverage
Some buyer leverage (60th percentile among scored ZIP Codes)
Derived from Zillow's market-heat index for this ZIP, inverted (a cooler market means more room for a buyer to negotiate). This is a cross-sectional snapshot (how this ZIP compares to every other tracked ZIP today), not a seasonal or historical baseline for this specific ZIP (no multi-year time series exists to support that claim). Not a prediction of what any specific seller will accept. See how this is calculated.
Source: Zillow Economic Research public research data. Zillow is not affiliated with, and does not endorse, Compounding Estates.
Underwrite with these as starting points
Opening a calculator pre-loads the ACS median owner value and median gross rent as a survey-level starting point; every calculator input is editable. Owner-occupied median value and renter median gross rent describe different housing stock: the median-valued home is not the typical rental, so this is a screen, not a listing, appraisal, asking rent, cap rate, or forecast. Bring your own entry price and rent.
ZIP Codes bordering 50670
7 ZIP Code areas share a land boundary with 50670 in the official Census 2020 ZCTA map, ordered by shared-boundary length, not ZIP-number proximity or driving distance. 6 of them are in CE's ranked set and linked below; the rest are searchable from the ZIP Code explorer. No score or rank is shown here: open a profile for its own numbers.
Evidence, sources & limitations
Official geography: Shell Rock city, Butler County. Analytical entity: the U.S. Census ZIP Code Tabulation Area (ZCTA) 50670, an approximation of the USPS ZIP delivery area, not its exact route boundaries. Model z2-gov-subscores-v1; data ACS 2024 5-year.
This ZIP Code area is primarily in Butler County (spans multiple counties), overlapping Shell Rock, by land-area overlap from the official Census 2020 ZCTA relationship files (not population or address share).
| Population | survey ACS B01003 · ±15% MOE |
|---|---|
| Median home value (ACS, owner-reported) | survey ACS B25077 · ±7% MOE |
| Median gross rent (ACS, incl. utilities) | survey ACS B25064 · ±40% MOE |
| Survey gross-rent yield (proxy) | derived 12 * ACS B25064 / B25077 |
| Median household income | survey ACS B19013 · ±9% MOE |
| Rental vacancy | derived ACS B25004 E002 / (B25003 E003 + B25004 E002) |
| Renter share | derived ACS B25003 E003/E001 |
| Estimated property-tax burden | derived ACS B25103 / B25077 |
| Median year built | survey ACS B25035 · ±0% MOE |
| Multifamily (5+ units) | derived ACS B25024 (5+ unit structures / total) |
Class: survey = ACS estimate (with margin of error); derived = computed from ACS. The survey gross-rent yield is a proxy (renter gross rent vs owner-occupied value, different housing stock; ACS top-codes very high values/rents) and is not a cap rate. Subscores are national percentiles among data-eligible areas; ranks are competition-ranked with deterministic ties. No vendor, listing, parcel, or school data. Not investment advice.